cant play game crashes every 3 minutes, cant eat cod, mutten, tropical fish

Been playing survival for a very long time and have a lot of items and useful material. I went to play it today and all my food that can be eaten is coded example item.minecraft.cooked_salmon.name the cod and the mutten are all just regular named. On top of this the game is at times refusing to load or crashes within about 5 minutes of gameplay. I didn't see an update do I need to uninstall and reinstall game. Please help cause I don't want to loose my progress. Also you can't eat items in creative as well