Fold on the river??

it's interesting to know what your though process was in this hand.
You could also call the min raise in position. As played it's tough to fold the river with so much invested, but I don't think you beat any hand in villains range or you have decent reads.

Cheers,
SDK1987

he make donk on 3 bet pot vs me every time

Put him on a range that is consistent starting from the preflop. Check your pot odds vs the equity you are having on the river. That will be your answer.

If you have no clue about what kind of player he is and what kind of range he might be playing, either assume it's just best to fold because of the lack of information and how few cents you have invested in this pot or use the general population tendencies.