Server crash, maybe your plugin ..

Hello,

from time to time our server crashes and we think your plugin could be the problem that the cpu is overheading. Our Error Log says follow as example:

mod_fcgid: stderr: PHP Warning: filesize(): stat failed for XXX kuerze/396271909564cd435459822.71993465.tmp.gz XXX plugins/wp-super-cache/wp-cache-phase2.php on line 654

mod_fcgid: stderr: PHP Warning: filesize(): stat failed for XXX kaeufern/813355157564cd45a82cd19.94821421.tmp in XXXX/wp-super-cache/wp-cache-phase2.php on line 640

This is the most error that appears in the log for different post types. We using Apache Server with FastCGI+OPcache, PHP 6

any idea?

THX

https://ww.wp.xz.cn/plugins/wp-super-cache/