Looks like when I try to access the site through the XStore Child theme, I get the 500 error this version has my customization. With the Xstore main theme, I believe I can get the site to work, but I have no customizations on that one.
https://engravingsystems23594761.wpcomstaging.com
I had also temporarily disabled the Xstore plugin. Otherwise, the site crashed, but it is back up and running with the child XStore them and getting the 500 error. I also disabled debugging in the FTP but that is up and running again also.
Let me know how you get on from what I could tell, everything was updated?
Regards,