Fonts in Portal

I use Bonita BPM Community7.2.1 Production portal with Tomcat server.
I’ve created a database in MySQL DBMS and have set utf8 and Persian font for it.
I write to and read from database in command prompt with Persian fonts and there is no problem.
But when I try to use Persian fonts in portal and writing something to database I face the problem and transaction is not completed. This error message is displayed:
USERNAME=hadi | org.bonitasoft.engine.transaction.STransactionCommitException: bitronix.tm.internal.BitronixRollbackException: RuntimeException thrown during beforeCompletion cycle caused transaction rollba
Can anyone guess what the problem is ?
Thank you

I installed Bonita BPM Production 7.2.2 and the problem was solved!!