Problem with Enfold Upgrade

Hello
I’m getting the following when trying to open any page….
(Get loads of the warnings and then the fatal error)

Warning: Illegal string offset ‘allowed-shortcodes’ in /home/person85/public_html/writemeapoem.net/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php on line 484

Warning: Illegal string offset ‘allowed-shortcodes’ in /home/person85/public_html/writemeapoem.net/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php on line 489

Fatal error: Uncaught Error: Cannot use string offset as an array in /home/person85/public_html/writemeapoem.net/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php:489 Stack trace: #0 /home/person85/public_html/writemeapoem.net/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php(443): aviaShortcodeTemplate->create_sortable_editor_element(Array) #1 /home/person85/public_html/writemeapoem.net/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php(397): aviaShortcodeTemplate->prepare_editor_element() #2 /home/person85/public_html/writemeapoem.net/wp-includes/class-wp-hook.php(286): AviaBuilder->js_template_editor_elements(”) #3 /home/person85/public_html/writemeapoem.net/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #4 /home/person85/public_html/writemeapoem.net/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /home/person85/public_html/writemea in /home/person85/public_html/writemeapoem.net/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php on line 489

Any ideas please.

Thanks in advance
Andy