I am currently using Joomla 4.0.0 Beta 6 with Helix Ultimate 2.0.0 Alpha 3 and PHP 7.2. My website runs on LiteSpeed Web Server, NOT Apache.
When I go to The Joomla administrator panel > SP Page Builder > Pages, I get the following error: *
"An error has occurred.
500 behavior::tabstate not found."
Here is what I got in the logs file:
CRITICAL ..... error Uncaught Throwable of type InvalidArgumentException thrown with message "behavior::tabstate not found.". Stack trace: #0 ~/public_html/administrator/components/com_sppagebuilder/sppagebuilder.php(18): Joomla\CMS\HTML\HTMLHelper::_('jhtml.behavior....')
Here are the steps to reproduce the issue:
I found the above problem solved after using Helix Ultimate 2 Beta 2 Quickstart Package (https://github.com/JoomShaper/helix-ultimate/releases/download/v2.0.0-beta.2/helixultimate_2_beta2_quickstart.zip).
Here are the steps that I followed: