Kicked because of a donation i didn't ask for

[knquiz]

Hello,

I began playing discovery mod today, creating a character called Tony Butler. I made some missions in the New York System, and got to level 12 (if i remember well) when someone gave me 100 000 credits (i never asked for them). I tried to contact him, but he was in an omicron system (i don't know yet how to contact someone who is not in the same system, sorry if i am a multiplayer noob). And when i was trying to do so, i saw a message saying "this unit accepts donations". The admin did not left me the time to explain anything and I was kicked right after that.
Can I still play multiplayer? Do I have to make a new character? And can anyone tell me why did i receive that donation and what should I do if that happens again?
Thanks for your answers.