The issue is a rogue Text entity located very far from the model Origin. It’s a bug form several years ago[1]. There are several other discussions posted about the same issue if you search the forum.
[1] SketchUp zoom extents issue with text
[2] I've also bumped into the Zoom Extents Bug
[3] Zooming In To One Locked Position Only - #11 by slbaumgartner
[4] I've also bumped into the Zoom Extents Bug - #6 by eneroth3
[5] Everything disappeared in my file
[6] Model Lost in Zoom Extent
[7] Lost Model! A lot of work will be lost... HELP
[8] Model randomly bugged out
[9] Sketchup zoom extends with text and 2d problem
[10] 144 MB model went blank - can't find model, axes, or horizon - #5 by sWilliams
[11] When I am doing a simple drawing (as I was with the attached) zoom extend stops working and I lose most of the model - #6 by slbaumgartner