Fatal error: Uncaught Error: Call to undefined function wp_is_file_mod_allowed() in /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/capabilities.php:406
Stack trace:
#0 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/class-wp-user.php(722): map_meta_cap('edit_plugins', 0)
#1 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/capabilities.php(623): WP_User->has_cap('edit_plugins')
#2 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-content/plugins/custom-field-template/custom-field-template.php(125): current_user_can('edit_plugins')
#3 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/class-wp-hook.php(286): custom_field_template->custom_field_template_init('')
#4 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#5 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#6 /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-settings.php(449): do_ac in /home/xs713288/cocoplaza-yokkaichi.jp/public_html/wp-includes/capabilities.php on line 406