Thank you for approaching us.
To help you solve this issue, we need some more information from you. Can you please send us following details:
1. Your MySQL version
2. Are you installing Ganib 5.1 jre or war file?
3. If you are installing Ganib.war, what is the version of your tomcat?
Please let us know the above details so that we can trace the issue quickly and provide you with best possible solution.