There are various options when you are trying to upload a pgn. Cut and paste is the easiest but when it doesn't work, the best thing is to enter the game by hand. On the analysis page, you can make moves and check your score.
I found out that your 22nd move was the problem. You had lost one knight on your 9th move and the other on move 16.
That left no knight available to take on d5 on move 22.
The poor computer was unable to figure out what it was meant to do.
I figured out that you meant to use your bishop on that move and take a pawn on f5.
Aside from that, the rest of the moves work.
If you all see any issues with my pgn I would love to learn my mistakes!
[Event "house game"]
[Date "2025.04.11"]
[Round "1"]
[White "Deavon"]
[Black "Kel"]
[Result "1-0"]
1. d4 f5 2. Nc3 d5 3. e3 Kf7 4. Nf3 Nh6 5. Be2 Qd6 6. b3 a6 7. Bb2 Qg6
8. Ne5+ Kg8 9. Nxg6 hxg6 10. Nxd5 Ra7 11. Nxc7 b6 12. Bc4+ Kh7 13. Nd5 b5
14. Nb6 Rc7 15. Bd3 Nd7 16. Nxd7 Bxd7 17. Rc1 Bc6 18. O-O e6 19. c4 g5
20. cxb5 axb5 21. d5 exd5 22. Nxd5 Nxf5 23. Qh5+ Nh6 24. Qxg5 Rc8 25. g3 d4
26. Bxd4 Rg8 27. Rc2 Ba3 28. Rfc1 Bxc1 29. Rxc1 Bb7 30. Rxc8 Bxc8
31. Qxb5 Nf5 32. Qd5 Rf8 33. g4 Nh4 34. Qh5+ Kg8 35. Qxh4 Be6 36. Bc5 Rf6
37. g5 Rg6 38. Qf4 Bf7 39. h4 Rc6 40. Qf5 Be6 41. Qe5 Kh7 42. f4 Ra6
43. a4 Bxb3 44. Bd4 Kg6 45. f5+ Kh5 46. g6 Rxa4 47. Qxg7 Bd5 48. Qh7+ Kg4
49. f6 Ra8 50. g7 Bf7 51. Qe4+ Kh5 52. Qxa8 Kxh4 53. g8=Q Bxg8 54. Qxg8
Kh5 55. f7 Kh6 56. f8=Q+ Kh5 57. e4 Kh4 58. Qh6# 1-0