Problem
When trying to login, application displays the following error: "Exception caught: 500 The call failed on the server". This can happen if the browser window with the application stayed open during update or if the browser session has expired or if database is not running.
Solution
- Refresh browser (Ctrl+F5) and then log in again OR log out and log in manually.
If this doesn't work, access the server via ssh and execute the following commands:
- Check the status of database and start the postgresql service
service postgresql-9.3 status
service postgresql-9.3 start
- Restart tomcat6 service (to register the application on the database)
service tomcat6 stop
service tomcat6 start