To put a little more flesh on what @DaveR reported, I found these three texts completely unmoored: (formatted as: text string at (reference position), vector (offset vector))
“67045000 mm²” at ( -nanmm, -nanmm, -nanmm), vector (NaN, NaN, NaN)
“63270000 mm²” at ( -nanmm, -nanmm, -nanmm), vector (NaN, NaN, NaN)
“61760000 mm²” at ( -nanmm, -nanmm, -nanmm), vector (NaN, NaN, NaN)
I don’t know how it happened, but those “nan” and “NaN” stand for “not a number”, meaning that the reference point and offset vector to it are not just large, they are indeterminate. They cause zoom-extents to move the camera to infinity. It should have been impossible for you to create these defective texts, so there is a bug lurking somewhere!
Erasing those three texts makes zoom extents work properly again.