I just noticed that I didn't include the full trace as I was trying to not list all our DBs. Here it is:

... more unparseable DB names....

bx_1              | Unparseable date: "zh-tw"
bx_1              | Unparseable date: "zu-za"
bx_1              | [qtp289639718-34] INFO com.bradmcevoy.http.HttpManager - PROPFIND :: http://localhost:8972/webdav/2023-06-14T07:37:56.294Z/ - http://localhost:8972/webdav/2023-06-14T07:37:56.294Z/
bx_1              | org.basex.core.BaseXException: Stopped at /srv/basex/, 1/41:
bx_1              | [db:name] Invalid name: 2023-06-14T07:37:56.294Z.
bx_1              | at org.basex.core.Command.execute(Command.java:94)
bx_1              | at org.basex.api.client.LocalSession.execute(LocalSession.java:131)
bx_1              | at org.basex.api.client.Session.execute(Session.java:36)
bx_1              | at org.basex.http.webdav.WebDAVQuery.execute(WebDAVQuery.java:70)
bx_1              | at org.basex.http.webdav.WebDAVService.dbExists(WebDAVService.java:84)
bx_1              | at org.basex.http.webdav.WebDAVFactory.getResource(WebDAVFactory.java:51)
bx_1              | at com.bradmcevoy.http.ResourceHandlerHelper.process(ResourceHandlerHelper.java:86)
bx_1              | at com.bradmcevoy.http.webdav.PropFindHandler.process(PropFindHandler.java:97)
bx_1              | at com.bradmcevoy.http.StandardFilter.process(StandardFilter.java:52)
bx_1              | at com.bradmcevoy.http.FilterChain.process(FilterChain.java:40)
bx_1              | at com.bradmcevoy.http.HttpManager.process(HttpManager.java:228)
bx_1              | at org.basex.http.webdav.WebDAVServlet.run(WebDAVServlet.java:36)
bx_1              | at org.basex.http.BaseXServlet.service(BaseXServlet.java:69)
bx_1              | at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
bx_1              | at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1459)
bx_1              | at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
bx_1              | at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1656)
bx_1              | at org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:319)
bx_1              | at org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:273)
bx_1              | at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:201)
bx_1              | at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
bx_1              | at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:552)
bx_1              | at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
bx_1              | at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600)
bx_1              | at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
bx_1              | at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
bx_1              | at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
bx_1              | at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
bx_1              | at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)
bx_1              | at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
bx_1              | at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505)
bx_1              | at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
bx_1              | at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
bx_1              | at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)
bx_1              | at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
bx_1              | at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
bx_1              | at org.eclipse.jetty.server.Server.handle(Server.java:516)
bx_1              | at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)
bx_1              | at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)
bx_1              | at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)
bx_1              | at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
bx_1              | at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
bx_1              | at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
bx_1              | at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
bx_1              | at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
bx_1              | at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
bx_1              | at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
bx_1              | at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
bx_1              | at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)
bx_1              | at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
bx_1              | at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
bx_1              | at java.base/java.lang.Thread.run(Thread.java:829)
bx_1              | Caused by: org.basex.query.QueryException: Invalid name: 2023-06-14T07:37:56.294Z.
bx_1              | at org.basex.query.QueryError.get(QueryError.java:1462)
bx_1              | at org.basex.query.func.StandardFunc.toName(StandardFunc.java:609)
bx_1              | at org.basex.query.func.StandardFunc.toData(StandardFunc.java:551)
bx_1              | at org.basex.query.func.StandardFunc.compileData(StandardFunc.java:249)
bx_1              | at org.basex.query.func.db.DbExists.opt(DbExists.java:41)
bx_1              | at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:80)
bx_1              | at org.basex.query.expr.Arr.compile(Arr.java:50)
bx_1              | at org.basex.query.scope.MainModule.compile(MainModule.java:33)
bx_1              | at org.basex.query.QueryCompiler.compile(QueryCompiler.java:99)
bx_1              | at org.basex.query.QueryContext.compile(QueryContext.java:336)
bx_1              | at org.basex.query.QueryContext.lambda$3(QueryContext.java:310)
bx_1              | at org.basex.query.QueryContext.run(QueryContext.java:766)
bx_1              | at org.basex.query.QueryContext.optimize(QueryContext.java:299)
bx_1              | at org.basex.query.QueryProcessor.optimize(QueryProcessor.java:84)
bx_1              | at org.basex.core.cmd.AQuery.run(AQuery.java:75)
bx_1              | at org.basex.core.Command.run(Command.java:233)
bx_1              | at org.basex.core.Command.execute(Command.java:93)
bx_1              | ... 51 more