Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /wp-content/plugins/olympus-google-fonts/includes/functions.php:424
Stack trace:
#0 /wp-content/plugins/olympus-google-fonts/class-olympus-google-fonts.php(113): ogf_is_memberpress_courses_activated()
#1 /wp-content/plugins/olympus-google-fonts/class-olympus-google-fonts.php(21): Olympus_Google_Fonts->compatibility()
#2 /wp-content/plugins/olympus-google-fonts/class-olympus-google-fonts.php(240): Olympus_Google_Fonts->__construct()
#3 /wp-content/plugins/olympus-google-fonts/olympus-google-fonts.php(25): require_once('/wp-content/plu...')
#4 /wp-includes/class-wp-hook.php(308): ogf_initiate('')
#5 /wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#6 /wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#7 /wp-settings.php(486): do_action('plugins_loaded')
#8 /wp-config.php(90): require_once('/wp-settings.ph...')
#9 /wp-load.php(50): require_once('/wp-config.php')
#10 /wp-blog-header.php(13): require_once('/wp-load.php')
in /wp-content/plugins/olympus-google-fonts/includes/functions.php on line 424