Could not perform persistence operation: java.sql.SQLException:

I keep getting an "Could not perform persistence operation: java.sql.SQLException: " when I try to acces the Users Data Table.
How can I fix this?

Hi Stig

Could show exactly how you get this error? What are the steps to reproduce?
If you have a setup project that demonstrates this error, you can sent it to us at support@backendless.com
Thanks

Please provide also your applicationId

It occurs when I try to acces the users table in the dashboard. Where I get the following error : Could not perform persistence operation: java.sql.SQLException: Column ‘installations.39371998-3CB5-0147-FF96-6B71B7FA9200’ not found.
I have sent my applicationId to the e-mail.