Hi all,

I tried to replace a database in the BaseX Database Administration (dba). A simple task that I often do.
But this time, I get this message:


Unexpected error: Improper use? Potential bug? Your feedback is welcome:
Contact: basex-talk@mailman.uni-konstanz.de
Version: BaseX 9.2.1
Java: Oracle Corporation, 1.8.0_231
OS: Linux, amd64
Stack Trace: 
java.lang.ArrayIndexOutOfBoundsException: 1
	at org.basex.io.random.TableDiskAccess.fpre(TableDiskAccess.java:507)
	at org.basex.io.random.TableDiskAccess.cursor(TableDiskAccess.java:468)
	at org.basex.io.random.TableDiskAccess.read1(TableDiskAccess.java:156)
	at org.basex.data.Data.kind(Data.java:304)
	at org.basex.query.value.node.DBNode.<init>(DBNode.java:50)
	at org.basex.query.value.seq.DBNodeSeq.get(DBNodeSeq.java:139)
	at org.basex.query.value.seq.DBNodeSeq.get(DBNodeSeq.java:164)
	at org.basex.query.func.db.DbOpen.value(DbOpen.java:19)
	at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:82)
	at org.basex.query.expr.Arr.compile(Arr.java:43)
	at org.basex.query.expr.path.Path.compile(Path.java:129)
	at org.basex.query.expr.If.compile(If.java:58)
	at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)
	at org.basex.query.QueryCompiler.compile(QueryCompiler.java:114)
	at org.basex.query.QueryCompiler.compile(QueryCompiler.java:105)
	at org.basex.query.QueryContext.compile(QueryContext.java:312)
	at org.basex.query.QueryContext.iter(QueryContext.java:331)
	at org.basex.http.restxq.RestXqResponse.serialize(RestXqResponse.java:73)
	at org.basex.http.web.WebResponse.create(WebResponse.java:56)
	at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:54)
	at org.basex.http.BaseXServlet.service(BaseXServlet.java:62)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1700)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1667)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:505)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:786)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:743)
	at java.lang.Thread.run(Thread.java:748)



Could you help me to find a solution?

Many thanks,
Philippe