[2021] Authorisation Errors

I recently picked up EfT and have been plagued with these error codes the last couple of days, having little luck looking online for support and haven't even played a full online match yet as I'm always returned to the main menu. If anybody has any knowledge or experience here I would appreciate the help.

I bought the European version of the game, however I get the error code 208 which returns me back to the main menu. A google search explains code 208 is for the wrong region version. I am in the UK and have the European version, which my Tarkov profile confirms. Despite this, the game allows me to do offline games with bots, but not online.

Any help would be massively appreciated, thanks!