Thank you very much!!

My friend wanted to test out Cubik studio but then he decided to give the key to some of his friends and now I cant activate cubik studio on my laptop so please reset it.

I did not realise that my username would be mentioned in the .json document of a minecraft texture, could I change my username because I use this for a lot of games so I do not like that it is in a document to whomever I give my resourcepack