maybe my account has a bug?? or the game has a bug??

I have opened the map around the area in the video. And it all started when i used the item "the grand project precursor tablet" on the tower. When i used it it became extremely laggy, and after i finished a map it started to crash like in the video. Even though I finish it it went back to fog and i couldn't continue! Please help me. I can't continue to experience it!! please!!
https://drive.google.com/file/d/1zauriTCD8v1fNANtgoI1_dw1NpkpPcHt/view