Can't create a branch in Bitbucket through Web Interface

[Fernando ochoa]

Hello, 

I am using bitbucket v7.21.1 hosted on a server behind a reverse proxy. I am currently testing the functionality of it by testing repo functions. 

I have a repo in there but whenever i try to create a branch through the web UI and click on the "Create Branch" button, nothing happens, the page doesn't start loading, it just does literally nothing.

Although, the ability to create a branch through git CLI works perfectly fine.

Checking the logs reveals nothing directly related to this, the only error populating in the logs has to do with "Failed to map attribute <gidNumber> from context with DN <...>",

Aside from this i am completely stumped as to what could be causing this.