Yes, this sensor is very "raw" and intended for machine vision tasks, as opposed to our OmniVision sensors which are more intended for consumer products. There is only auto-gain and auto-exposure in the AR0135, no auto white balance, and not even manual white balance. You can ignore the error message, it just means that this sensor does not support a particular control (which may very well be one of the white balance controls). Even though the colors may look different (and maybe not as pleasing), the upside is that they should be more reliable (since the white balance is not continuously adjusted by the sensor).
If you can find the data sheet or developer guide on the web for either AR0135 or AR0134, it will give you some hints (sorry we cannot post it here). For example, looks like these registers are available:
to play with them, do this in the JeVois Inventor console:
setpar camreg 1 # enable access to sensor registers
getcamreg 0x305a # get current value of red gain (should return 20, in hex)
setcamreg 0x305a 0x40 # set new value for red gain (8-bit value)
according to the datasheet: The format for digital gain setting is xxx.yyyyy where 0b00100000 represents a 1x gain setting and 0b00110000 represents a 1.5x gain setting. The step size for yyyyy is 0.03125 while the step size for xxx is 1. Therefore to set a gain of 2.09375 one would set digital gain to 01000011. The maximum digital gain is 7.97x.
Note that setcamreg does not support binary values, only decimal, or hex (with 0x prefix), or octal (with 0 prefix; beware of that one).
You can put those commands into your initscript.cfg if you want them to run each time the camera boots up.