Gitlab Runner EOF Issue

Hello everybody,

I am using HAproxy on the front and Gitlab on the back of HAproxy.
(HAproxy IP :
(Gitlab IP :

Gitlab was installed in the OS in binary form, and Kubernetes Gitlab-Runner was installed in Helm and used.

The Gitlab CI is operating normally, but the Runner Pod has the following

 "WARNING: Checking for jobs..." Failed runner=5t7gtr5r status=couldn't execute POST again Post": EOF"

Warning Error is occurring.

I want to remove the Warning Log, so could you tell me which part to check?
Thank you.

For your information, you can see below that it comes out normally when you turn the CI Pipeline.