There could be a number of mech problems related to your question. What u need to do if a local mech is not around. 1st you need to ssk yourself questions . is it fuel related or is it a in your Electrical Charging battery system hint "low battery"? A: easy stuff first, open up the hood Look at battery cables +red=pos Black - =ground "negative if the battery has a low charging system check your gages and note if the charge indicater is low by turning your key to acc slight bout 1/4 turn. If is low and you have no battery charger or jumper cables do this If battery terminals have corrision build up you need to remove cables red and black make sure you mark the terminals on the battery with the cable you removed so that you do not cross the cables when reinstalling them back. Clean all corrision from battery terminals and cables there is 2ways to do this easiest is to get baking soda From your home appliance refrigerator Mix about 4 tsp with water and slowly pour over battery cables and top terminal. Get a toothbrush and scrub as it well start foaming and remove all corrosion build up. Next Start install cables and make sure you have a good ground by tighting the black cable "very important". Good luck Check back if this does not work fir the next trial & error i well cover the possibility of fuel related problems.
Your vehicle can fail to move in case you do not have transmission fluid. Check that you did not have a leak of the fluid. It could also be the front differential or the front axels are coming out. Check also to make sure that you have enough fuel. If neither of this is the problem, get a mechanic to help you troubleshoot the problem.