WordPress Fatal Error: Cannot access offset of type string on string in

Hey everyone,
I am trying to migrate my website but unfortunately I always get an error on the new host:

Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /var/www/html/wp-content/plugins/siteorigin-panels/inc/renderer.php:839 Stack trace: #0 /var/www/html/wp-content/plugins/siteorigin-panels/inc/renderer.php(77): SiteOrigin_Panels_Renderer->get_panels_layout_data('x00x00x00x00x00x00x00x00x00x00x00x00x00x00x00...') #1 /var/www/html/wp-content/plugins/siteorigin-panels/siteorigin-panels.php(501): SiteOrigin_Panels_Renderer->generate_css(7083) #2 /var/www/html/wp-includes/class-wp-hook.php(308): SiteOrigin_Panels->generate_post_css('') #3 /var/www/html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #4 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #5 /var/www/html/wp-includes/script-loader.php(2180): do_action('wp_enqueue_scri...') #6 /var/www/html/wp-includes/class-wp-hook.php(308): wp_enqueue_scripts('') #7 /var/www/html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #8 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #9 /var/www/html/wp-includes/general-template.php(3043): do_action('wp_head') #10 /var/www/html/wp-content/themes/eduma/header.php(16): wp_head() #11 /var/www/html/wp-includes/template.php(783): require_once('/var/www/html/w...') #12 /var/www/html/wp-includes/template.php(718): load_template('/var/www/html/w...', true, Array) #13 /var/www/html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #14 /var/www/html/wp-content/themes/eduma/page-templates/homepage.php(6): get_header() #15 /var/www/html/wp-includes/template.php(783): require_once('/var/www/html/w...') #16 /var/www/html/wp-content/themes/eduma/wrapper.php(4): load_template('/var/www/html/w...') #17 /var/www/html/wp-includes/template-loader.php(106): include('/var/www/html/w...') #18 /var/www/html/wp-blog-header.php(19): require_once('/var/www/html/w...') #19 /var/www/html/index.php(17): require('/var/www/html/w...') #20 {main} thrown in /var/www/html/wp-content/plugins/siteorigin-panels/inc/renderer.php on line 839

Anyone a idea how to fix this?

BR!