I am playing a Japanese game and I accidentally joined a team. In the chat the other players welcomed me, but how do I answer them and how can I ask them if they are bothered by the fact that I only know a tiny bit Japanese?

I am playing a Japanese game and I accidentally joined a team. In the chat the other players welcomed me, but how do I answer them and how can I ask them if they are bothered by the fact that I only know a tiny bit Japanese?

I tried to write a comment myself and this is what I ended up with: 字が読めません
初ぬまして 私はオランダ人です. But I don't know if this is correct ^^;

(I also couldn't find a translation for my question if they are bothered by the fact that I only know a tiny bit Japanese. Does anyone know how I could say that?)