I see in another thread -
https://forum.centos-webpanel.com/index.php?topic=13340.msg46528;topicseen#msg46528You are also having issue with ICU. They could be connected. (That whole PHP add-on looks like a headache to me personally.)
Since you also mentioned PHP 7.3.x
Is this on a dedicated box or a VPS?
Using Apache or Nginx?
OS Distro & Version?
The memory on my dedicated box for a micro mirror with 32GB seems to use more memory for some reason.