jenkins authentication fails with gitlab : Before to say my problem, i installed my **gitlab**(omnibus settting) and gitlab is connected external **nginx** server. And than now i am setting jenkins. 

While i am making new jenkins item, when i select "Git" in "Source code management" i receive following message in the picture.[git selecting screen][1] 

So i checked "error.log" in my external nginx. And then i found following error code. 

**`[error] 20979#0: OCSP_basic_verify() failed (SSL: error:27069076:OCSP routines:OCSP_basic_verify:signer certificate not found) while requesting certificate status, responder: ocsp.int-x1.letsencrypt.org`**

I also searched it on google and anywhere i know, but i still don't know how to solve this problem.

thank you advance for your help.






  [1]: http://i.stack.imgur.com/JGU72.png