handle chat == null gracefully and remove link from message if channel not found
handle chat == null gracefully and remove link from message if channel not found

smoogipoo/osu,johnneijzen/osu,smoogipooo/osu,2yangk23/osu,Nabile-Rahmani/osu,smoogipoo/osu,naoey/osu,ppy/osu,NeoAdonis/osu,peppy/osu-new,johnneijzen/osu,ppy/osu,peppy/osu,UselessToucan/osu,peppy/osu,UselessToucan/osu,naoey/osu,Frontear/osuKyzer,smoogipoo/osu,ppy/osu,UselessToucan/osu,ZLima12/osu,NeoAdonis/osu,2yangk23/osu,DrabWeb/osu,EVAST9919/osu,NeoAdonis/osu,EVAST9919/osu,ZLima12/osu,DrabWeb/osu,naoey/osu,peppy/osu,DrabWeb/osu