solver error during validation

2 jobs for develop in 54 seconds (queued for 1 minute and 46 seconds)
Name Stage Failure
failed
build_docker_image Build
2b586d0001ac: Retrying in 2 seconds
09d2357ad6cd: Retrying in 1 second
1c16f0aae5bc: Retrying in 1 second
cf72d8d47564: Retrying in 1 second
87bf68236f2e: Retrying in 1 second
2b586d0001ac: Retrying in 1 second
received unexpected HTTP status: 500 Internal Server Error
Cleaning up project directory and file based variables
ERROR: Job failed: exit status 1