Fatal error: Uncaught Error: Non-static method OptimizePress_Default_Assets::_get_element_number() cannot be called statically in /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/assets/default.php:3714
Stack trace:
#0 /home/customer/www/iamu.it/public_html/wp-includes/shortcodes.php(356): OptimizePress_Default_Assets::video_lightbox(Array, '<iframe width="...', 'video_lightbox')
#1 [internal function]: do_shortcode_tag(Array)
#2 /home/customer/www/iamu.it/public_html/wp-includes/shortcodes.php(228): preg_replace_callback('/\\[(\\[?)(video_...', 'do_shortcode_ta...', '[video_lightbox...')
#3 /home/customer/www/iamu.it/public_html/wp-includes/class-wp-hook.php(307): do_shortcode('[video_lightbox...')
#4 /home/customer/www/iamu.it/public_html/wp-includes/plugin.php(189): WP_Hook->apply_filters('[video_lightbox...', Array)
#5 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/functions/general.php(1027): apply_filters('the_content', '[video_lightbox...')
#6 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/functions/page_options.php(890): op_process_content_filter('[video_lightbox...', true)
#7 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/functions/page_options.php(178): OptimizePress_Page_Options->generate_layout(Array, 'body', false)
#8 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/functions/page_options.php(1462): OptimizePress_Page_Options->load_layout('body', false, 'content_area', '', Array, false)
#9 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/functions/page_options.php(1468): _op_page_func('load_layout', 'body', false, 'content_area', '', Array, false)
#10 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/functions/general.php(730): op_page_layout('body', false, 'content_area', '')
#11 /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/framework.php(414): op_init_page(7006)
#12 /home/customer/www/iamu.it/public_html/wp-includes/class-wp-hook.php(307): op_template_include('/home/customer/...')
#13 /home/customer/www/iamu.it/public_html/wp-includes/plugin.php(189): WP_Hook->apply_filters('/home/customer/...', Array)
#14 /home/customer/www/iamu.it/public_html/wp-includes/template-loader.php(104): apply_filters('template_includ...', '/home/customer/...')
#15 /home/customer/www/iamu.it/public_html/wp-blog-header.php(19): require_once('/home/customer/...')
#16 /home/customer/www/iamu.it/public_html/index.php(17): require('/home/customer/...')
#17 {main}
thrown in /home/customer/www/iamu.it/public_html/wp-content/plugins/optimizePressPlugin/lib/assets/default.php on line 3714