Elements with "page not found" on dashboard

[PapaTramp]

Hello,
Periodically, the message "page not found" appears above the elements in adshboard, which disappears after a while, or after reloading the page. What could be the reason for this? How i can fix that?
Thx.

[Rafael Silva]

Hello,

I have the same error!
Someone found the solution?

[gbmadmin]

Same here, I started seeing those 'Page not found' errors after upgrading MariaDB to 11.08.02 (didn't know Zabbix needed MariaDB <= 11.05.xx and when I found out it was too late, MariaDB had been upgraded and I didn't want to go through the downgrade rabbit hole).

Any idea on how to solve these annoying Page not found messages? Thanks