https://forums.sketchup.com/t/issue-opening-file-failed-to-open-document/230881/23
https://forums.sketchup.com/t/please-help-failed-to-open-document/239690/9
no, they’re here.
you posted them 2 min appart, then waited 20 min, and posted this one. but multiple posts won’t bring a quicker answer.
please understand this is a community forum, most of us are community, and we won’t jump on the forum to answer. And for a tech related issue like that, Colin is likely going to help, but he is in Colorado, right now it’s 16:50, he is at work, he’ll come by.
Meanwhile, to kill time, you could go there and introduce yourself 