Serious bug, which makes it impossible for me to continue playing!

I only started yesterday afternoon when I returned to my hiding place after completing the map of the other world. When I was preparing the next map, it showed that the world map was all foggy. When I reopened the map, it still displayed the ongoing map, but it was already completed! After repeated completion, the same situation also occurred, and it was not possible to proceed to the next region. I have also found people with the same problem on other websites, but none of them have a solution. I hope you can give me a solution!