Steps to reproduce:

1. Upgrade zabbix-server from 4.4.3 to 4.4.4
2. Go to Monitoring -> Graphs
3. Choose graph "Web response time"

Result:
See screenshot zab_4.4.4_err.png - the graph is not drawn, when try to choose "Look as value", got error "No permissions to referred object or it does not exist!". But in Monitoring -> Latestdata datas are presents.

Expected:
After downgrade zabbiz server to 4.4.3 graph begin to be drawn, data did not disappear,

see screenshot zab_4.4.3_noerr.png.

In 4.4.3 version zabbix server I got "No permissions to referred object or it does not exist!" when choose "Look as value" but graph is displayed.