Owner of project unable to merge the requests

Eventhough I am one of the owners of the project, I am not able to merge the merge requests. My colleagues can still merge those. There is a warning icon showing near my profile. It is weird. Tried to remove the access and given again. But still, the issue persists. Kindly guide me in getting the issue resolved. Please let me know if you need more information.
I am getting the following error near the Merge button, but I am the owner of the project and I am able to write/update files in this repository.
“Ask someone with write access to this repository to merge this request”