Having Issues Starting + Loose Wire

Update: I went to the store today and bought an ignition tester for testing the spark and got home with it and hooked it up on the front driverside spark plug and it showed a spark and started to fire over, so i took out the tester plugged it back into the spark plug and the engine fired right up, and it ran for about 30 seconds to a minute and it died now it wont fire again and i hooked back up the tester and now there is now spark