docker push not working in Bitbucket pipeline

I am looking for a freelancer who can help me with a technical issue in my Bitbucket pipeline. The main issue is with the docker push not working properly. I am not facing any authentication problem or configuration error. However, I am facing another technical issue that I need help with. I am using a specific Docker registry other than Docker Hub or Google Container Registry. If needed, I can provide the error message or log output.
Ideal skills and experience:
- Experience with Bitbucket pipeline and Docker push
- Expertise in identifying and resolving technical issues in pipelines
- Familiarity with different Docker registries other than Docker Hub and Google Container Registry.