[NTG-context] Module Update from GIT URL Fails

Dear Taco, Moica has told me that you are the maintainer of modules.contextgarden.net. Is this correct? I don't seem to be able to update my ConTeXt module "high". I try to create a new version by entering the URL of my git repository (git@bitbucket.org:philexander/context-highlight.git) into the GIT URL field and clicking submit. But the website then tells me "Change to temporary directory failed". What am I doing wrong? By the way: My web browser tells me that the certificate of https://modules.contextgarden.net has expired. Kind regards, Christoph