Fatal error: Uncaught Error: Call to undefined function wp_is_block_theme() in /home/host1301913/zosya.net/htdocs/www/wp-content/plugins/woo-stickers-by-webline/includes/class-woo-stickers-by-webline.php:216
Stack trace:
#0 /home/host1301913/zosya.net/htdocs/www/wp-content/plugins/woo-stickers-by-webline/includes/class-woo-stickers-by-webline.php(77): Woo_Stickers_By_Webline->define_public_hooks()
#1 /home/host1301913/zosya.net/htdocs/www/wp-content/plugins/woo-stickers-by-webline/woo-stickers-by-webline.php(97): Woo_Stickers_By_Webline->__construct()
#2 /home/host1301913/zosya.net/htdocs/www/wp-content/plugins/woo-stickers-by-webline/woo-stickers-by-webline.php(101): run_woo_stickers_by_webline()
#3 /home/host1301913/zosya.net/htdocs/www/wp-settings.php(391): include_once('/home/host13019...')
#4 /home/host1301913/zosya.net/htdocs/www/wp-config.php(90): require_once('/home/host13019...')
#5 /home/host1301913/zosya.net/htdocs/www/wp-load.php(37): require_once('/home/host13019...')
#6 /home/host1301913/zosya.net/htdocs/www in /home/host1301913/zosya.net/htdocs/www/wp-content/plugins/woo-stickers-by-webline/includes/class-woo-stickers-by-webline.php on line 216