Fatal error: Uncaught TypeError: property_exists(): Argument #1 ($object_or_class) must be of type object|string, null given in /home/o/openwo/openworld.su/public_html/wp-content/plugins/simply-gallery-block/plugins/init.php:66
Stack trace:
#0 /home/o/openwo/openworld.su/public_html/wp-content/plugins/simply-gallery-block/plugins/init.php(66): property_exists(NULL, 'enableLightbox')
#1 [internal function]: pgc_sgb_plugin_frontend_scripts('')
#2 /home/o/openwo/openworld.su/public_html/wp-includes/class-wp-hook.php(308): call_user_func_array('pgc_sgb_plugin_...', Array)
#3 /home/o/openwo/openworld.su/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#4 /home/o/openwo/openworld.su/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#5 /home/o/openwo/openworld.su/public_html/wp-includes/script-loader.php(2180): do_action('wp_enqueue_scri...')
#6 [internal function]: wp_enqueue_scripts('')
#7 /home/o/openwo/openworld.su/public_html/wp-includes/class-wp-hook.php(308): call_user_func_array('wp_enqueue_scri...', Array)
#8 /home/o/openwo/openworld.su/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#9 /home/o/openwo/openworld.su/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#10 /home/o/openwo/openworld.su/public_html/wp-includes/general-template.php(3043): do_action('wp_head')
#11 /home/o/openwo/openworld.su/public_html/wp-content/themes/jumla/header.php(20): wp_head()
#12 /home/o/openwo/openworld.su/public_html/wp-includes/template.php(783): require_once('/home/o/openwo/...')
#13 /home/o/openwo/openworld.su/public_html/wp-includes/template.php(718): load_template('/home/o/openwo/...', true, Array)
#14 /home/o/openwo/openworld.su/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#15 /home/o/openwo/openworld.su/public_html/wp-content/themes/jumla/page.php(15): get_header()
#16 /home/o/openwo/openworld.su/public_html/wp-includes/template-loader.php(106): include('/home/o/openwo/...')
#17 /home/o/openwo/openworld.su/public_html/wp-blog-header.php(19): require_once('/home/o/openwo/...')
#18 /home/o/openwo/openworld.su/public_html/index.php(17): require('/home/o/openwo/...')
#19 {main}
thrown in /home/o/openwo/openworld.su/public_html/wp-content/plugins/simply-gallery-block/plugins/init.php on line 66