Adding on to what @Justin_Barrett shared, are you sure a related field was not renamed or reconfigured in some way? ()That can affect formulas and therefore the base REST API’s
Actually, I’ll bet it only seemed like it was working. My hunch is your code finally encountered a data pattern that it didn’t support. In almost every case, API errors like this are related to encoding, specifically quotes.
Examine the exact call (URL containing the filter) you are making to Airtable - you almost certainly will spot the error.
I did not rename or do anything, all other apps with original code I have (Thubkable X) not working at all after compiler to apk for Android. I used same code repleted again to test and result is same error with parameter validation fail. If my field is rename the existing app should not running right? But it is happen only re-complier to new version.