Problem How to i load up an old save of my skyfactory map?

[gunnut68]

So i was playing skyfactory3 when my game crashed and kept doing it, so i tried to update my modpack and then my whole world turned into random modded blocks and liquids. I looked up how to do this but never found anyone with the same problem so now i just want to load an old save of my map before my world got completely messed up. Please help (only spent almost 300 hours on the map), I also linked a picture of what my base looks like after the crashes, my base was all obsidian by the way

 

[gunnut68]

nvm i fixed it after hours of more research

 

[BGierowski]

nvm i fixed it after hours of more research

How did you fix it, cause the same thing happened to me, a lot of my blocks changed to random things and multi-block structures like my coke oven are just gone, can you help me?

 

[gunnut68]

How did you fix it, cause the same thing happened to me, a lot of my blocks changed to random things and multi-block structures like my coke oven are just gone, can you help me?

I went to my backups folder and copied the save before the crash into my saves folder where my world was, there are also a few vids that helped me.