2002 Renault Megane electric roof? ?

My friend found a small strap type thing in the middle of back seat (behind a small bit that pulls up in the middle) she pulled it and now my electric roof wont work. The actual roof will move when released so far then beeps and the back bit that houses it doesn't open. I have tried to follow the instructions people have put on forums but don't understand what is what!! I am a single female with no clues at all about cars and my friend who pulled the strap obviously has even less clues lol. Please can someone help me :-) x