NL20 Facing overbet with set on river

Only hand i can put him on was 58
iPoker - €0.20 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

UTG: 48.2 BB (VPIP: 52.24, PFR: 24.38, 3Bet Preflop: 4.48, Hands: 204)
Hero (MP): 113.95 BB
CO: 100 BB (VPIP: 18.22, PFR: 14.69, 3Bet Preflop: 6.34, Hands: 1,306)
BTN: 186.2 BB (VPIP: 28.35, PFR: 18.39, 3Bet Preflop: 4.17, Hands: 267)
SB: 140.85 BB (VPIP: 23.73, PFR: 11.86, 3Bet Preflop: 0.00, Hands: 60)
BB: 94.5 BB (VPIP: 25.23, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 112)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has 7♠ 7♥

UTG calls 1 BB, Hero calls 1 BB, CO calls 1 BB, fold, fold, BB checks

Flop: (4.5 BB, 4 players) 6♦ 7♣ K♣
BB checks, UTG checks, Hero bets 3 BB, fold, BB calls 3 BB, fold

Turn: (10.5 BB, 2 players) Q♦
BB checks, Hero bets 8 BB, BB calls 8 BB

River: (26.5 BB, 2 players) 4♠
BB bets 82.5 BB,