Describe the bug I migrate my tigase database(based on MySQL) to another MySQL database which version is same.Then I execute command './scripts/tigase.sh upgrade-schema etc/tigase.conf' which tigase must to execute.Finally,when I start Tigase server,the error logs is printed in console.

To Reproduce Steps to reproduce the behavior:

1. Migrate tigase database based on MySQL to another host.
2. Change the properties in config.tdsl and start tigase server
3. Execute command code './scripts/tigase.sh upgrade-schema etc/tigase.conf'
4. Restart tigase server and the error is printed on console.

Impact Can start tigase server but can't login by Conversations XMPP Client with fault auth using previous account.

Expected behavior Can use Conversations or other XMPP client normally

Screenshots

Details (please complete the following information):

• Tigase version: [e.g. 8.1.2]
• JVM flavour and version [e.g. AdoptOpenJDK11]
• Operating system/distribution/version [e.g. Linux Centos 7]