Travis CI is not running to new commits to remote repository

I have travis set up on this project (https://github.com/MUCollective/multiverse) and it was working until a couple of months ago when new commits did not trigger a build on travis as you can see in the build log here(https://travis-ci.com/github/MUCollective/multiverse/builds)

I am not sure what happened or how to resolve the issue, and I haven’t been able to add the repository back on travis again even though I am an owner of the organisation which the repository belongs to.

Please help.