Error uploading artifacts

I installed gitlab on Docker Swarm environment behind a Trafik proxy.

When i run a pipiline all works fine except when the executor try to upload artifacs.

I have this error:

ERROR: Uploading artifacts to coordinator... error  error=couldn't execute POST against https://xxxxx/api/v4/jobs/121/artifacts?artifact_format=zip&artifact_type=archive: Post https://xxxxx/api/v4/jobs/121/artifacts?artifact_format=zip&artifact_type=archive: malformed HTTP response "\x15\x03\x01\x00\x02\x02\x16" id=121 token=eiaAjqi9
WARNING: Retrying...                                error=invalid argument
ERROR: Uploading artifacts to coordinator... error  error=couldn't execute POST against https://xxxxx/api/v4/jobs/121/artifacts?artifact_format=zip&artifact_type=archive: Post https://xxxxx/api/v4/jobs/121/artifacts?artifact_format=zip&artifact_type=archive: malformed HTTP response "\x15\x03\x01\x00\x02\x02\x16" id=121 token=eiaAjqi9
WARNING: Retrying...                                error=invalid argument
ERROR: Uploading artifacts to coordinator... error  error=couldn't execute POST against https://xxxxx/api/v4/jobs/121/artifacts?artifact_format=zip&artifact_type=archive: Post https://xxxxx/api/v4/jobs/121/artifacts?artifact_format=zip&artifact_type=archive: malformed HTTP response "\x15\x03\x01\x00\x02\x02\x16" id=121 token=eiaAjqi9
FATAL: invalid argument                            

I not understand whats is the error means. Any help?

Regards