JPQL Error

I am trying to run ObjectDB first time in a production server.

Operating System: Ubuntu Ubuntu 22.04.1 LTS

ObjectDB Version: 2.8.8 (Downloaded)

ObjectDB version in Maven: 2.8.8

(I don't know how comes 2.8.1 comes in the error message)

When I try to run jpql, it gives this error

[ObjectDB 2.8.1] Unexpected exception (Error 990)
  Generated by OpenJDK 64-Bit Server VM 11.0.17 (on Linux 5.15.0-1025-gcp).
Please report this error on http://www.objectdb.com/issue/new
com.objectdb.o.InternalException: Error reading UTF string
com.objectdb.o.InternalException: Error reading UTF string
    at com.objectdb.o.BYR.U(BYR.java:1217)
    at com.objectdb.o.BYR.U(BYR.java:523)
    at com.objectdb.o.BYR.L(BYR.java:504)
    at com.objectdb.o.QJD.a(QJD.java:241)
    at com.objectdb.o.QRD.f(QRD.java:378)
    at com.objectdb.o.QRQ.m(QRQ.java:366)
    at com.objectdb.o.STC.h(STC.java:462)
    at com.objectdb.o.SHN.J(SHN.java:491)
    at com.objectdb.o.SHN.x(SHN.java:157)
    at com.objectdb.o.HND.run(HND.java:134)
    at java.base/java.lang.Thread.run(Thread.java:829)

There is no such error now. Must be a configuration error on my side. Please close the thread. Thank you