Dear Basex Team,

We are getting below error while adding xml's to collection.Please let us know any solution for this error

Exception ::org.basex.core.BaseXException: Improper use? Potential bug? Your feedback is welcome:
Contact: basex-talk@mailman.uni-konstanz.de
Version: BaseX 7.9
Java: Oracle Corporation, 1.7.0_79
OS: Linux, amd64
Stack Trace:
java.lang.RuntimeException: Insertion at beginning of populated table.
at org.basex.util.Util.notExpected(Util.java:53)
at org.basex.io.random.TableDiskAccess.insert(TableDiskAccess.java:371)
at org.basex.data.Data.insert(Data.java:901)
at org.basex.data.Data.insert(Data.java:710)
at org.basex.core.cmd.Add.run(Add.java:103)
at org.basex.core.Command.run(Command.java:329)
at org.basex.core.Command.execute(Command.java:94)
at org.basex.core.Command.execute(Command.java:117)
at org.basex.server.ClientListener.execute(ClientListener.java:384)
at org.basex.server.ClientListener.add(ClientListener.java:355)
at org.basex.server.ClientListener.run(ClientListener.java:100)

Regards,

Chandrasekhar