Users & Roles Problem After Upgrade from 3.0.2 to 3.1

After Updating form OJS 3.0.2 to 3.1 the users and roles section is not available anymore.please help me with this.Server is apache2 and php V 5.6.
Screenshot at 2017-11-03 17:20:40Screenshot at 2017-11-03 17:20:51

Hi @rainwolf

Your issue is quite similar to thread bellow. And it is, most probably, related to a hit error. As you can see, an option to debug is check your browser console log and verify possible errors messages on it.

Israel Cefrin
Public Knowledge Project Team

Unfortunately the answers on that topic was so general and did not solved my i installed pure OJS 3.1 from the base and we created all journals archives and issues again! and published Journal With OJS did not cost to much time because we recently switched journal management system to the OJS.but i`m afraid that in future when the papers and archives are mass what should we do if it goes unstable!