Stuff was all pink and black, and a few days before I could not trade with villagers. Looked for some like mine but only found ones from 1.13

After I installed minecraft on my current phone, I logged on to my minecraft account (that I use for my computer and old phone.) I made a quick world by just clicking a seed (Tiga Village) and putting it on creative. After that I found it weird that I could not trade with villagers. After two days I got back on and it was all pink and black (except a few blocks and most items you could only hold like a sword) I could trade with villagers again though. After that I made a new world with a different seed (Epic Jungel) and there was no problem to the eye. (I did not play with it just flew around)