Aku şarj olmuyor

This is my 2000 model Ford focus mk1 with Zetec s 1.4l petrol engine.

This started after parking for 2months. Alternator pulley got stuck, Replaced with a second handed one. Then p1246 and battery light appeared as signals. Please anyone to help me with solutions to these problems?Am really frustrated right now.

It means your charging system isn't working properly.