When I loaded my site yesterday I got the WordPress (WP) page for “A critical error has occurred”. WP sent an email with the error:

An error of type E_ERROR was caused in line 569 of the file /home1/scalapre/public_html/wp-content/plugins/codeless-framework/include/register-post-types.php. Error message: Uncaught Error: Call to undefined function is_plugin_active() in /home1/scalapre/public_html/wp-content/plugins/codeless-framework/include/register-post-types.php:569
Stack trace:
#0 /home1/scalapre/public_html/wp-content/plugins/codeless-framework/codeless-framework.php(77): require_once()
#1 /home1/scalapre/public_html/wp-content/plugins/codeless-framework/codeless-framework.php(95): Cl_Framework_Manager->__construct()
#2 /home1/scalapre/public_html/wp-content/plugins/codeless-framework/codeless-framework.php(159): Cl_Framework_Manager::getInstance()

Disabling the codeless-framework plugin brought the site back up but the slider and other features are no longer working.

I checked themeforest for new theme updates but I was on the latest version at the time.

Late in the day yesterday I saw a new version of the theme was available (4.2.7) so I updated to it and reinstalled the plugin (1.0.6). The same issue occurred.

While grabbing the details for this ticket today another update (4.2.8) was pushed. This still causes the same failure. Only difference is the line number.

I am running:

WP 6.2
Specular 4.2.8
Codeless Framework 1.0.7

Here is the latest error along with line numbers:

Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /home1/scalapre/public_html/wp-content/plugins/codeless-framework/codeless-framework.php:24 Stack trace: #0 /home1/scalapre/public_html/wp-settings.php(453): include_once() #1 /home1/scalapre/public_html/wp-config.php(93): require_once(‘/home1/scalapre…’) #2 /home1/scalapre/public_html/wp-load.php(50): require_once(‘/home1/scalapre…’) #3 /home1/scalapre/public_html/wp-admin/admin.php(34): require_once(‘/home1/scalapre…’) #4 /home1/scalapre/public_html/wp-admin/themes.php(10): require_once(‘/home1/scalapre…’) #5 {main} thrown in /home1/scalapre/public_html/wp-content/plugins/codeless-framework/codeless-framework.php on line 24