oaweo

i tried to use immersive portals mod on my minecraft world (forge with optifine running in the back, 1.19.3)i loaded into the world and the mod didnt work so i left and deleted the mod. now every time i try to load back into the world it just says "errors in currently selected datapacks prevented the world from loading" i cannot get into the world someone please help i have a lot of time spent in this world

i tried to use immersive portals mod on my minecraft world (forge with optifine running in the back, 1.19.3)i loaded into the world and the mod didnt work so i left and deleted the mod. now every time i try to load back into the world it just says "errors in currently selected datapacks prevented the world from loading" i cannot get into the world someone please help i have a lot of time spent in this world