Oracle Database Discussions

HI all,

Today when i checked the alert log files of a database.I saw this error.

Error 3106 trapped in 2PC on transaction 11.94.81515. Cleaning up.
Error stack returned to user:
ORA-03106: fatal two-task communication protocol error
ORA-02063: preceding line from MCLIMS.WORLD

Database is running fine,i am able to connect to the database logging in as user.

when i checked out in the internet, i got these info.

ORA-03106
========
Possible reasons for the ORA-03106 errors include:

1. Incompatibilities between the client application and the RDBMS server.
For example, version incompatibilities, or a client trying to use a feature not supported by

the database kernel.
2. When using database links or gateways.
3. Network or SQL*Net problems.
4. Corruptions.
5. PL/SQL - language related.

I am not user what would be the cause,in the above mentioned possibilities

Could any body help me on this.