git:Issuer certificate is invalid.

 https://community.atlassian.com/t5/Bitbucket-questions/git-error-Issuer-certificate-is-invalid/qaq-p/149388

This is probably a problem with the SSL Certificate.

I can't tell you exactly what is the problem but you can disable SSL Checks on the git client to finish the push:

• git config --global http.sslVerify false

Please let me know how it goes.