Overview page loading (slow) but not showing content at all

[zusjefox]

Hello,

When trying to visit the Overview page it doesn't show anything.
The other pages show just fine and load fast.

> Both MariaDB and Zabbix-Server are restarted.
> I downloaded a clean overview.php from the Zabbix Share and tried this, it didn't work either.

I'm running Zabbix 3.4.15 in CentOS7.

I hope someone can help me with this problem.
Thanks in advance.

Kind regards,
Zus

[zusjefox]

Apparently the Group option was set to 'All' where Type was set to 'DATA'.
Due to a lack of memory the server could not handle this.

I have set the /etc/httpd/conf.d/zabbix.conf php_value memmory_limit to 1024M instead of 128M.
I also set the /etc/ php.ini memory_limit to 1024M.

After this I could load the page and change back the Group and Type settings to normal.
It's working again.