Attempting to Delete Posts leads to 500 Error

[jmac32here]

I am trying to delete posts from my Nabble and all I get is this:

Error 500

org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: NativeFSLock@/Users/administrator/nabble/nabble/local/lucene/303/write.lock
        in delete_recursively(nabble:delete_node.naml:38) - <n.delete_recursively/> - public void nabble.view.web.template.NodeNamespace.delete_recursively(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in var(nabble:delete_node.naml:39) - <n.redirect_to.var name='next_url'/> - public void nabble.naml.namespaces.BasicNamespace.var(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in page_node(nabble:delete_app.naml:10) - <n.page_node.delete_node_recursively_and_redirect/> - public void nabble.view.web.template.NodePageNamespace.page_node(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.ScopedInterpreter)
        in as_node_page(nabble:utilities.naml:936) - <n.as_node_page.do/> - public void nabble.view.web.template.NodeNamespace.as_node_page(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.ScopedInterpreter)
        in do(nabble:utilities.naml:941) - <n.get_node_from_request_parameter.do/>
        in get_node_from_request_parameter(nabble:utilities.naml:941) - <n.get_node_from_request_parameter.do/> - public void nabble.view.web.template.ServletNamespace.get_node_from_request_parameter(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.ScopedInterpreter) throws java.io.IOException,javax.servlet.ServletException,nabble.naml.namespaces.TemplateException
        in catch_exception(nabble:utilities.naml:940) - <n.catch_exception. id="get-node-block"> - public void nabble.naml.namespaces.BasicNamespace.catch_exception(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in (nabble:delete_node.naml:21) - <macro name="delete_from_site" requires="servlet">

Message: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: NativeFSLock@/Users/administrator/nabble/nabble/local/lucene/303/write.lock

RequestURI: /template/NamlServlet.jtp

Server: s1.nabble.com
Caused by:

nabble.view.lib.JtpContextServlet$JtpServletException: url=http://drako-s-den-forums-archive.303.s1.nabble.com/template/NamlServlet.jtp?macro=delete_from_site&node=1343  method=GET user-agent=Mozilla/5.0 (X11; Linux x86_64; rv:153.0) Gecko/20100101 Firefox/153.0 referer=http://drako-s-den-forums-archive.303.s1.nabble.com/template/NamlServlet.jtp?macro=delete_from_site&node=1343 remote=172.56.106.236
        at nabble.view.lib.JtpContextServlet.handleException(JtpContextServlet.java:541)
        at nabble.view.lib.JtpContextServlet.service2(JtpContextServlet.java:442)
        at nabble.view.lib.JtpContextServlet.service(JtpContextServlet.java:311)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1360)
        at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:77)
        at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:144)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at cachingfilter.CachingFilter.doFilter(CachingFilter.java:135)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at fschmidt.util.servlet.BadBotFilter.doFilter(BadBotFilter.java:74)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at fschmidt.util.servlet.ConnectionLimitFilter.doFilter(ConnectionLimitFilter.java:94)
        at nabble.view.lib.NabbleConnectionLimitFilter.doFilter(NabbleConnectionLimitFilter.java:26)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at nabble.view.lib.NabbleErrorFilter.doFilter(NabbleErrorFilter.java:21)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:477)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
        at org.eclipse.jetty.server.Server.handle(Server.java:349)
        at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
        at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:910)
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
        at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
        at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:76)
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609)
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)
        at nabble.model.Executors$1$1.run(Executors.java:27)
        at fschmidt.util.executor.ThreadTimer$1.run(ThreadTimer.java:18)
        at fschmidt.util.executor.AbstractThreadPool$1.run(AbstractThreadPool.java:29)
        at java.lang.Thread.run(Thread.java:748)
Caused by: nabble.naml.compiler.TemplateRuntimeException: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: NativeFSLock@/Users/administrator/nabble/nabble/local/lucene/303/write.lock
        in delete_recursively(nabble:delete_node.naml:38) - <n.delete_recursively/> - public void nabble.view.web.template.NodeNamespace.delete_recursively(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in var(nabble:delete_node.naml:39) - <n.redirect_to.var name='next_url'/> - public void nabble.naml.namespaces.BasicNamespace.var(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in page_node(nabble:delete_app.naml:10) - <n.page_node.delete_node_recursively_and_redirect/> - public void nabble.view.web.template.NodePageNamespace.page_node(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.ScopedInterpreter)
        in as_node_page(nabble:utilities.naml:936) - <n.as_node_page.do/> - public void nabble.view.web.template.NodeNamespace.as_node_page(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.ScopedInterpreter)
        in do(nabble:utilities.naml:941) - <n.get_node_from_request_parameter.do/>
        in get_node_from_request_parameter(nabble:utilities.naml:941) - <n.get_node_from_request_parameter.do/> - public void nabble.view.web.template.ServletNamespace.get_node_from_request_parameter(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.ScopedInterpreter) throws java.io.IOException,javax.servlet.ServletException,nabble.naml.namespaces.TemplateException
        in catch_exception(nabble:utilities.naml:940) - <n.catch_exception. id="get-node-block"> - public void nabble.naml.namespaces.BasicNamespace.catch_exception(nabble.naml.compiler.IPrintWriter,nabble.naml.compiler.Interpreter)
        in (nabble:delete_node.naml:21) - <macro name="delete_from_site" requires="servlet">
        at nabble.naml.compiler.Compiler.interpFix(Compiler.java:2007)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1636)
        at nabble.naml.compiler.Compiler$Chunks.run(Compiler.java:1121)
        at nabble.naml.compiler.Compiler$VarScope.run(Compiler.java:1259)
        at nabble.naml.compiler.BlockWrapper.printTo(BlockWrapper.java:68)
        at nabble.naml.compiler.ScopedInterpreterImpl$1.printTo(ScopedInterpreterImpl.java:25)
        at nabble.naml.compiler.TemplatePrintWriter.print(TemplatePrintWriter.java:22)
        at nabble.view.web.template.NodePageNamespace.page_node(NodePageNamespace.java:63)
        at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1625)
        at nabble.naml.compiler.Compiler$Chunks.run(Compiler.java:1121)
        at nabble.naml.compiler.BlockWrapper.printTo(BlockWrapper.java:68)
        at nabble.naml.compiler.ScopedInterpreterImpl$1.printTo(ScopedInterpreterImpl.java:25)
        at nabble.naml.compiler.TemplatePrintWriter.print(TemplatePrintWriter.java:22)
        at nabble.view.web.template.NodeNamespace.as_node_page(NodeNamespace.java:801)
        at sun.reflect.GeneratedMethodAccessor145.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1625)
        at nabble.naml.compiler.BlockWrapper.printTo(BlockWrapper.java:68)
        at nabble.naml.compiler.ScopedInterpreterImpl$1.printTo(ScopedInterpreterImpl.java:25)
        at nabble.naml.compiler.TemplatePrintWriter.print(TemplatePrintWriter.java:22)
        at nabble.view.web.template.ServletNamespace.get_node_from_request_parameter(ServletNamespace.java:352)
        at sun.reflect.GeneratedMethodAccessor118.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1625)
        at nabble.naml.compiler.BlockWrapper.printTo(BlockWrapper.java:68)
        at nabble.naml.compiler.TemplatePrintWriter.print(TemplatePrintWriter.java:22)
        at nabble.naml.namespaces.BasicNamespace.catch_exception(BasicNamespace.java:599)
        at sun.reflect.GeneratedMethodAccessor117.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1631)
        at nabble.naml.compiler.Compiler$Chunks.run(Compiler.java:1121)
        at nabble.naml.compiler.Template.run(Template.java:61)
        at nabble.naml.compiler.Template.run(Template.java:33)
        at nabble.modules.ModuleManager.run(ModuleManager.java:268)
        at nabble.view.web.template.NamlServlet.service(NamlServlet.java:167)
        at nabble.view.web.template.NamlServlet.service(NamlServlet.java:135)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at nabble.view.lib.JtpContextServlet.service2(JtpContextServlet.java:440)
        ... 38 more
Caused by: java.lang.RuntimeException: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: NativeFSLock@/Users/administrator/nabble/nabble/local/lucene/303/write.lock
        at nabble.model.Lucene$1.event(Lucene.java:195)
        at nabble.model.Lucene$1.event(Lucene.java:183)
        at fschmidt.db.ListenerList.event(ListenerList.java:49)
        at fschmidt.db.ListenerList.event(ListenerList.java:49)
        at fschmidt.db.base.DbRecordImpl$3.run(DbRecordImpl.java:316)
        at fschmidt.db.pool.PooledConnection.commit(PooledConnection.java:155)
        at fschmidt.db.pool.PooledConnection.commitTransaction(PooledConnection.java:259)
        at fschmidt.db.pool.Pool.commitTransaction(Pool.java:70)
        at fschmidt.db.pool.DbDatabaseImpl.commitTransaction(DbDatabaseImpl.java:90)
        at fschmidt.db.extend.FilterDatabase.commitTransaction(FilterDatabase.java:99)
        at nabble.model.NodeImpl.deleteRecursively(NodeImpl.java:388)
        at nabble.view.web.template.NodeNamespace.delete_recursively(NodeNamespace.java:794)
        at sun.reflect.GeneratedMethodAccessor545.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at nabble.naml.compiler.JavaCall.invoke(JavaCall.java:26)
        at nabble.naml.compiler.Compiler$Block.invoke(Compiler.java:1557)
        at nabble.naml.compiler.Compiler$Block.run(Compiler.java:1625)
        ... 88 more
Caused by: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: NativeFSLock@/Users/administrator/nabble/nabble/local/lucene/303/write.lock
        at org.apache.lucene.store.Lock.obtain(Lock.java:84)
        at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:1098)
        at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:953)
        at nabble.model.lucene.IndexCache$MyIndexWriter.<init>(IndexCache.java:165)
        at nabble.model.lucene.IndexCache.openIndexWriter(IndexCache.java:235)
        at nabble.model.Lucene$1.event(Lucene.java:188)
        ... 105 more