Oom kill

Hello,
English isn’t my first language, so please excuse any mistakes.
i have a cenots 7.2 istance on VSphere with 8 cpu and 32Gb Ram, Every 6/7 day i have an OOM kill
i don’t have idea why.
i have Server version: 5.5.53-38.5-log Percona Server (GPL), Release 38.5, Revision 71794d3
I Attach config
and mysqltuner.pl result.
please help! :frowning:

Nicola

my.cnf.txt (2.06 KB)

dmesg.txt (8.55 KB)

mysqltuner.txt (5.94 KB)