Steps to reproduce:

I installed 2 zabbix servers, and those 2 zabbix servers are same problem. 

I need to sharing dashboard to guest users.

but when I click the Sharing in actions, pop-up menu doesn't appear on the page. 

I wait long time for this, but it isn't working. Please help. 

See screenshot...

See log file...
See memory dump...
Expected:
See screenshot....
See attached patch file...