Translation of inadmissible in German

Well why are you doing that to yourself? That is very hard. You can easily write in another language, if you prefer, because I speak many languages and I can understand many more. I only have problems with writing.
Please give me a minute to work on it, I've currently three people talking to me at the same time over the support chat, plus two others in form of real people in my office! (Yes this still exists, real people...). Is that OK?
My daughter and her husband have invited me today, it is always very nice to visit them. There were many friends there too, because it was my grandson's birthday. We were very happy and celebrating.