The cat furniture game has a glitch that corrupted the world I replaced it with.

I bought a stupid cat furniture game because my granddaughter wanted it. When I put it in my realm and tried to play it with her on my laptop I couldn't put furniture down if I tried to move it. I even killed myself and spawned holding a stupid couch. I reset and still couldn't get rid of it. I replaced it with another standard Minecraft world I had created to play with her and it corrupted that world. The dye has been replaced with color change tools and there are now move tools in my chests and I don't have any idea what they replaced.