my renault clio y reg 2001 1.2 dynoique wont reverse any ideas?

hi
today i tried to reverse out of a parking space in my clio wasnt sat still for long possibly 15 mins and i couldnt reverse it was as tho there was something under the back tyers or as tho the handbreak was on checked the hand break all seems fine then i put some petrol in and she wouldnt go off in 1st gear first try so i did it again and we moved. does any body have a clue as to why my clio is broken,



thank you