Problem when editing catalog items in Cloudforms 3.2

Issue

• We have experienced some troubles when working with Cloudforms regarding blank web pages unable to access the database,

• We are wondering if errata RHSA-2015-2620 solves the problem and if it is safe to apply it. In such case, what will be the procedure for it?
  *The problem appears when trying to edit a service catalog. The output is:

Unexpected error encountered

Errors in Management Engine can be caused by:

① Accessing Management Engine from multiple tabs or windows of the same browser on a single machine. Close any duplicate browser sessions, then select a menu option above.
② Pressing the back button during a session.
      Close any duplicate browser sessions, then select a menu option above.
③ An internal system error.
      Please contact your administrator for assistance.