gitlab 11.11.3-ee bundle CPU 100%

good afternoon,
Since yesterday, my Gitlab instance is using a lot of CPU and I don’t know why.
Sometimes I can use the web interface, sometimes it doesn’t even load, and 502 errors appear multiple times, making the team unusable.

Anyone, have any suggestions?

Version: 11.11.3-ee
Operating system: CentOS 2CPU 16G RAM