Can't create shapes and i don't have a floor

I’m having 2 problems and I need help, I can’t create shapes for some reason and I only can create them through the Modeling mode but they are a bit different, and it’s like this in every project, even new ones.

the second problem is when I create a new basic level, It just doesn’t have the floor. it had a floor but one day it just disappeared. It shows it in the outliner, but it just doesn’t exist. and the visibility is all on. and this happens on every project I make now.
Please help :frowning_face:

Hello @anon51309516


:sweat_smile:

try from here:
image