Need some help with weird white lines on tilesets

Last time It wasn’t like this until I tried one of those tutorials on how to install mods. I already tried reinstalling it over and over again, change different tilesets but the lines still reappear making it look more weirder.

• How long it’s been like this?

Pretty much months now

• Did you delete your data and let the game install back to default?

Done that and the weird lines still there

I’m not sure what went wrong but i think my tileset corrupted