Classic Editor disabled Advanced Layout Builder

Hi, I have migrated 2 websites to new domains, everything went well at first but then I realised I can’t enable the Advanced Layout Builder, it seems to be broken.

I deactivated the plugin “Classic Editor” and it just made things worse. Now it doesn’t even show the page, it just shows the following message:

“The site is experiencing technical difficulties. Please check your site admin email inbox for instructions.”

Then I get an email with the following errors:

Error Details
=============
An error of type E_ERROR was caused in line 489 of the file /home/reelrock/reelrock.pt/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php. Error message: Uncaught Error: Cannot use string offset as an array in /home/reelrock/reelrock.pt/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php:489
Stack trace:
#0 /home/reelrock/reelrock.pt/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php(443): aviaShortcodeTemplate->create_sortable_editor_element(Array)
#1 /home/reelrock/reelrock.pt/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php(395): aviaShortcodeTemplate->prepare_editor_element()
#2 /home/reelrock/reelrock.pt/wp-includes/class-wp-hook.php(286): AviaBuilder->js_template_editor_elements(”)
#3 /home/reelrock/reelrock.pt/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#4 /home/reelrock/reelrock.pt/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#5 /home/reelrock/reelrock.pt/wp-includes/media-template.php(1350): do_action(‘print_media_tem…’)
#6 /home/reelrock/reelrock.pt/wp-inclu

This happens on both websites. Anyone know how to fix this?