WooCommerce Fatal Errors Enfold

Hi guys, opening a new thread:
We are currently showing some fatal errors in Woocommerce based on some config errors in the Enfold theme:

2020-09-13T08:08:35+00:00 CRITICAL Uncaught Error: Cannot use string offset as an array in /home/nhki9uva3g62/public_html/wp-content/themes/enfold/config-woocommerce/config.php:1596
Stack trace:
#0 /home/nhki9uva3g62/public_html/wp-includes/class-wp-hook.php(286): avia_woocommerce_ajax_search_params(‘Aumberposts=5&p…’)
#1 /home/nhki9uva3g62/public_html/wp-includes/plugin.php(208): WP_Hook->apply_filters(‘numberposts=5&p…’, Array)
#2 /home/nhki9uva3g62/public_html/wp-content/themes/enfold/functions-enfold.php(235): apply_filters(‘avf_ajax_search…’, ‘numberposts=5&p…’)
#3 /home/nhki9uva3g62/public_html/wp-includes/class-wp-hook.php(286): avia_ajax_search(”)
#4 /home/nhki9uva3g62/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array)
#5 /home/nhki9uva3g62/public_html/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#6 /home/nhki9uva3g62/public_html/wp-admin/admin-ajax.php(188): do_action(‘wp_ajax_nopriv_…’)
#7 {main}
thrown in /home/nhki9uva3g62/public_html/wp-content/themes/enfold/config-woocommerce/config.php on line 1596

We are currently running theme version 4.7.6.3.
Previous thread: https://kriesi.at/support/topic/woocommerce-issues-3/#post-1246199