Installed SP Page Builder Pro v3 and Helix Ultimate 2.
Helix Ultimate designated as default template.
Working in SPPB Pro3, I imported a template on a new page, saved, and added as a menu item. However the front end now displays this message on a white background:
"Failed opening required '/home/artbillofrights/(website name)/layouts/comingsoon.php' (include_path='.:/opt/alt/php80/usr/share/pear:/opt/alt/php80/usr/share/php:/usr/share/pear:/usr/share/php')"
If I go to Template Options in Helix Ultimate, I get the same message as above.
After making an additional new page in SPPB3 and deleting the previously made SPPB3 pages, same error as shown above.
I then deleted SPPB3 and worked with Ultimate and I get this error on the front side:
ERR_TOO_MANY_REDIRECTS
The only sane thing to do at this discouraging development was to uninstall both SPPB3 and Ultimate.
Now I'm back to where I started.