Fatal error: Uncaught Error: Call to undefined function wp_theme_has_theme_json() in /home/urbanpla/public_html/2016/wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php:62
Stack trace:
#0 /home/urbanpla/public_html/2016/wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php(49): uaf_update_theme_json_font(Array)
#1 /home/urbanpla/public_html/2016/wp-content/plugins/use-any-font/includes/functions/uaf_font_functions.php(229): uaf_block_editor_custom_fonts()
#2 /home/urbanpla/public_html/2016/wp-content/plugins/use-any-font/includes/functions/uaf_admin_functions.php(137): uaf_write_css()
#3 /home/urbanpla/public_html/2016/wp-includes/class-wp-hook.php(307): uaf_plugin_initialize('')
#4 /home/urbanpla/public_html/2016/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array)
#5 /home/urbanpla/public_html/2016/wp-includes/plugin.php(474): WP_Hook->do_action(Array)
#6 /home/urbanpla/public_html/2016/wp-settings.php(587): do_action('init')
#7 /home/urbanpla/ in /home/urbanpla/public_html/2016/wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php on line 62