I had exactly the same error messages when I attempted to replace a barometer (rendered unusable with conformal coating) with another one and, unknowingly at that time, destroyed one of the traces that was connecting the I2C address definition pin to the ground. This made it irresponsive from the viewpoint of the flight controller, which was the culprit.
(By the time I recognised the cause of the issue and the ways to fix it, I managed to blow few other small components off the FC, making it completely non-functional.)
I think you can tell apart the faulty barometer vs some Ardu-side code glitch by testing the same firmware on a different but otherwise identical board.
I have a dji 04 vtx mounted on top and it tightened the hold down nuts to much which caused interference. I loosened then and all is well now. The vtx wasn’t touching just close.
