IC7.2 jvm.dll problem

[backe]

Hi

I have Avaya interaction center IC 7.2 connected to Definity system
Without any known reason (no upgrade on any avaya component), agents who have mail channel enabled, started to get error:
Failed to laod JVM.DLL. WebAgent cannot be launched.

After that application is just closed

When I remove mail channel from agent, they can start application without any problem.

Did any of you had similar problem?
Do you now how to solve it (without reinstallation of application)?

Thanks in advance

Regards