There are a few causes for this error.
- vi slowed by While or other time consuming activity
- other error messages flooding the cRIO and slowing it down in general
- an initialization bug in the original Framework template only affects the initial Disabled state and goes away as soon as you Enable.
Look at each place you call Tank/Arcade/Holonomic Drive.
At least one of those places must be called every tenth of a second, otherwise, you get that error message and your drive motors shutdown.