Just to help here, I discovered that having raw html in the head conflicts with SP Page Builder Pro Version 4.0.11 Page / Module editing. (white page).
Helix Ultimate 2.0.13 plugin (*Gourmand Template)
I disable this item (raw html) and Page / Module editing works again.
Shaper_helixultimate Details and Files 2.0.13 < installed but doesnt work.
The error is as before:
Failed opening required 'ROOT/layouts/chromes/sp_xhtml.php' (include_path='.:/opt/alt/php81/usr/share/pear:/opt/alt/php81/usr/share/php:/usr/share/pear:/usr/share/php')
- I put ROOT in there in place of the real path...
Luckily I am not using the Shaper_helixultimate on this site but I am on another...
I love these products. Nearly perfect!
Thank you JOOMSHAPER Team.
-Sandman