Bitbucket freezes while Importing an existing git repository (about 200MB)

Hello,

I have an existing git repository our team has been working on in the last 2 years, today we decided to move the bare repository to BitBucket but I tried twice to import it from our server (using protocol http://) and after the import loads all the data (at least that's what I guess because it takes several minutes and after that I don't see connections open on our apache local server), the progressive bar stops at around 80%, the textarea below continues growing (loooong list of "....") until the process terminate (after hours) with an error message that says max execution time has been reached....

This is an import task still running now after almost 2 hours:
https://bitbucket.org/repo/import/682800

What can I do ?