hello,
I hope anyone can help me out here, i am completely stuck in our sourcetree repo.
This is our current situation:

We have had numerous issue with merging in the past, so i refrained from doing so for a while (all updates went manually via the colleague).
But now i want to return to co-op via sourcetree.
There are some changes i've created in my repo, which are currently committed into the "HEAD" entry.
But i cannot push this to the cloud repo.
It complains about the master being one behind, but there doesn't seem to be anything i can do about it.
It also keeps mentioning a detached head, i tried removing it, but it just keeps showing and in bold.
I can try to checkout any version, but it will return to this image without any message.
Yes, i'm new to this. How can i get this situation fixed so that the "head" variant is the new leading version of both my local and the remote repo (so anyone else can use it again).