@vxseanjohnxv ,Sean, Check all batteries for full charge(replace if batteries will not charge/hold charge) and that the wires/connections are clean/tight and undamaged. There are a few other things that may cause this issue faulty solenoid, key switch, micro switch, faulty motor,etc.. Find links below 1st and 2nd link are trouble shooting links for your issue and the 3rd link is a service manual with trouble shooting/testing components. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.
http://www.cartsunlimited.net/ezgo-troubleshooting.html
http://www.buggiesgonewild.com/electric-ezgo/20729-ezgo-diagnostics.html
http://products.jacobsen.com/img/manuals/28646.pdf