Running with gitlab-ci-multi-runner 9.2.0 (adfc387)
  on ubuntu-4gb-nyc3-01 (7bd4b9e2)
Using Docker executor with image maven:3.3.9 ...
Using docker image sha256:db61048dd9d59da4243201a479fc67ade28cc6bea7071f964cc26e6cf55999d1 for predefined container...
Pulling docker image maven:3.3.9 ...
Using docker image maven:3.3.9 ID=sha256:9997d8483b2fc521a4159feab922546dda0c5c22b5084f86dfab48f123ae4364 for build container...
Running on runner-7bd4b9e2-project-30-concurrent-0 via ubuntu-2gb-nyc3-01...
Cloning repository...
Cloning into '/builds/LadySerenaKitty/server-management'...
fatal: unable to access 'https://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@felinewith.me/LadySerenaKitty/server-management.git/': SSL certificate problem: unable to get local issuer certificate
ERROR: Job failed: exit code 1