Any other log in the std error log?
Is it easy to reproduce? May I know if it also happens on a simple PHP script?
Sure, you could increase some limits, e.g. initTimeout, procSoftLimit, procHardLimit, and see if it helps.
Looks ip2location does not compile properly. Maybe you can try to run the build script again.
/root/third-party/script/build_ip2loc.sh
Please try to fix the failure if any.