Hi there,
I just found in my settings the following warnings:
* The OPcache buffer is nearly full. To assure that all scripts can be hold in cache, it is recommended to apply `opcache.memory_consumption` to your PHP configuration with a value higher than `2048`.
* The OPcache interned strings buffer is nearly full. To assure that repeating strings can be effectively cached, it is recommended to apply `opcache.interned_strings_buffer` to your PHP configuration with a value higher than `512`.
As 2048 and 512 is already high for a web application, there seems to be another issue.
Any ideas so far?