it is fixed now
https://drive.google.com/file/d/1hN0TxyizkkNELqnVzKTbQtRZ-Efjt_DB/view?usp=sharing
webmaster shows error 404 for homepage
this just seems to happen on the homepage
GTMETRIX shows 404 error
This happened after:
21/Oct/2018:12:51:59 +0000] “POST /wp-admin/update.php?action=upload-theme
upload theme
5 seconds before 404