Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /home/marronote17/light-novel-lovers.info/public_html/wp-content/plugins/rich-table-of-content/functions.php:519
Stack trace:
#0 /home/marronote17/light-novel-lovers.info/public_html/wp-content/plugins/rich-table-of-content/functions.php(1380): rtoc_get_index('\n<p>2021\xE5\xB9\xB42\xE6\x9C\x88...')
#1 /home/marronote17/light-novel-lovers.info/public_html/wp-includes/class-wp-hook.php(307): rtoc_switch_mokuji('\n<p>2021\xE5\xB9\xB42\xE6\x9C\x88...')
#2 /home/marronote17/light-novel-lovers.info/public_html/wp-includes/plugin.php(189): WP_Hook->apply_filters('\n<p>2021\xE5\xB9\xB42\xE6\x9C\x88...', Array)
#3 /home/marronote17/light-novel-lovers.info/public_html/wp-includes/post-template.php(253): apply_filters('the_content', '<!-- wp:paragra...')
#4 /home/marronote17/light-novel-lovers.info/public_html/wp-content/themes/jin/single.php(81): the_content()
#5 /home/marronote17/light-novel-lovers.info/public_html/wp-includes/template-loader.php(106): in
/home/marronote17/light-novel-lovers.info/public_html/wp-content/plugins/rich-table-of-content/functions.php on line
519
