Game crashed and it didn't save

[Logic125]

my game crashed because i talked to the mega kick elder thing outside khanto cave after it asked me to show a pokemon i didn't own, it crashed. Thing is before that i completed a battle out of pure luck (mega nerd for the fossils) and i only won it because of a lucky crit, and it saved my fainted pokemon but not the fact that i beat him and i didn't get a reward and have to fight him again. so if any developer reads this, fix the saving system because now i have to repeat walking through the most annoying cave in the game 10+ times waiting for the lucky crit or grind on level 5 pokemon wich will take even longer

fix this, please.