Hello,
I am really sorry for the delay of this reply as it is a weekend for us here. Please find the answers to your inquiries below:
1. Hm, this is probably because we have not yet updated the language files on Transifex. I have updated it now and you'll need to update the language files.
2. Crap, the previous guy didn't do a great job at fixing this. I have fixed this and it should work fine now
3. Sorry but I do not understand you here. Once the user is banned, they are banned from the site. Am I missing anything here?
4. I believe this is probably because of some caching issues. I have cleared the cache and it works fine now.
5. Fixed.
6.Sorry but don't really understand the issue here.