Sorry I'm trying to post the raw hand history but I keep getting an invalid hand error.

20 euros tournament, no info about the opponent.
What do you think? Is it a fold on the turn or a check-fold on the river?
Did I make a big mistake in this spot?

partypoker, €20 + €0 - Hold'em No Limit - 5,000/10,000 (1,200 ante) - 8 players

Bobty092 (UTG): 360,600 (36 bb)
Pygargue05 (UTG+1): 392,550 (39 bb)
JuStSpauld (MP): 331,304 (33 bb)
guasom77 (MP+1): 317,696 (32 bb)
Tekmany10 (CO): 245,442 (25 bb)
MESCOUILLEENSKI (BU): 447,496 (45 bb)
le germivore (SB): 103,600 (10 bb)
HERO (BB): 372,480 (37 bb)

*Pre-Flop: (24,600) Hero (Gae420) is BB with Qc Ks*
4 players fold, Tekmany10 (CO) raises to 30,000, MESCOUILLEENSKI (BU) calls 30,000, 1 fold, Gae420 (BB) calls 20,000

*Flop: (104,600) 9c Qh 10h (3 players)*
Gae420 (BB) checks, Tekmany10 (CO) checks, MESCOUILLEENSKI (BU) bets 52,300, Gae420 (BB) calls 52,300, Tekmany10 (CO) folds

*Turn: (209,200) 10d (2 players)*
Gae420 (BB) checks, MESCOUILLEENSKI (BU) bets 90,000, Gae420 (BB) calls 90,000

*River: (389,200) 2s (2 players)*
Gae420 (BB) bets 198,980 (all-in), MESCOUILLEENSKI (BU) calls 198,980

Total pot: 787,160

Showdown:
Gae420 (BB) shows Q K (two pair, Queens and Tens)
(Equity - Pre-Flop: 45%, Flop: 15%, Turn: 9%, River: 0%)

MESCOUILLEENSKI (BU) shows 9 9 (a full house, Nines full of Tens)
(Equity - Pre-Flop: 55%, Flop: 85%, Turn: 91%, River: 100%)

MESCOUILLEENSKI (BU) wins 787,160