Enfold Theme Fatal Error on Activation

Hi there,

I have been using the Enfold theme for quite some time and have never had an issue with it before, however my latest website I can successfully install the theme but when I activate it it comes up with the error message of:

Fatal error: Uncaught Error: Function name must be a string in /home/expres37/public_html/wp-content/themes/enfold/framework/php/class-htmlhelper.php:222 Stack trace: #0 /home/expres37/public_html/wp-content/themes/enfold/framework/php/class-htmlhelper.php(131): avia_htmlhelper->render_single_element(Array) #1 /home/expres37/public_html/wp-content/themes/enfold/framework/php/class-adminpages.php(205): avia_htmlhelper->create_container_based_on_slug(Array, ‘avia_active_con…’) #2 /home/expres37/public_html/wp-includes/class-wp-hook.php(298): avia_adminpages->render_page(”) #3 /home/expres37/public_html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(”, Array) #4 /home/expres37/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /home/expres37/public_html/wp-admin/admin.php(222): do_action(‘toplevel_page_a…’) #6 {main} thrown in /home/expres37/public_html/wp-content/themes/enfold/framework/php/class-htmlhelper.php on line 222

And does not display a website, only this message.

I have deleted it from the ftp directory and reinstalled and still get the message on activation.

I have added the link to my website, WP and ftp login credentials if required in the Private Content.

Thank you in advance.