So the issue began when I first realised the battery on my car was flushing, so I drove it for awhile and it went off. So I thought this is a battery issue. I changed the battery and changed the alternator after, then when I put it on gear either D or R the car makes a sound but it won't move anymore. Please if anyone knows what is this issue, I would realy appreciate the help. Do I need to change the gear box? Or this is an electrical issue.