hi
This is the first time I have had this occur, though I see many on the forum have had it happen.
Over the weekend I was working on the site with no issues. The only change I can think of is the addition of the Google Tag Manager code to my child theme functions.php file Now I am unable to open any page.
I am on X version 4.64 as I upgraded to 5 some time ago and it stopped my site working. That was prior to me having a child theme setup. It took me ages to rebuild everything from the backup I had taken. I am now not sure about doing the upgrade to 5.
Any suggestions, as I have not added any further plugins in that time
URL is feastthailand.com
Regards