I also can contribute with spanish traslation.
Yeah… Zanata is not the most reliable host. A year or so ago they were down for a week+ with no notice on Twitter, etc.
I really wish Purism would switch to using WebLate instead as it has better uptime/communication and allows you to create ‘projects’ to group things. So for example, there could simply be a librem5 project that grouped phosh and Chatty (and anything else) to make it easy to find what to contribute to.