Ok I'll give that a try and see how it goes. Thanks!

Sounds like loose or bad connection problem. Voltage starts at line contactor by the batteries then goes to the front flip down were it goes through the fuse, emergency disconnect, drive tow switch and connections then through the mast cable to key switch and back down mast cable before being sampled at the controller for battery state of charge. So all you can do is clean and tighten all connections while checking to see how much voltage drop you have.

The flashing light is the battery icon. Below it is the diamond icon with the question mark, which is showing that no one is on the wave with feet on pedals and hand on handles

Is it a flashing bar on far right side without battery icon being lit or is it left side flashing bar beside the battery icon?