Driver side window offtrack

Hi,
My driver side window just went offtrack day before. I am looking
for some suggesstions how to fix it. The motor seems to work fine.
Just that the glass is not in normal position.

Is this something I can fix my self or do I have to take it to a
repair shop. If I do take it to the repair shop how much should it cost
to fix it..

Thanks for the replies,
Nishant

Sorry should have given this information in my first message. Model
Saab 93. Saab 1999.

Is there a guide as to how to take off the door trim and door panel
or if could you give a brief outline as to how to open the door panel.

Thanks for the reply,
Nishant