Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, non-static method ColumnPost_Widget::register_widget() cannot be called statically in /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/class-wp-hook.php:288
Stack trace:
#0 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters()
#1 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/plugin.php(478): WP_Hook->do_action()
#2 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/widgets.php(1765): do_action()
#3 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/class-wp-hook.php(288): wp_widgets_init()
#4 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters()
#5 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/plugin.php(478): WP_Hook->do_action()
#6 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-settings.php(523): do_action()
#7 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-config.php(97): require_once('/home/leba/doma...')
#8 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-load.php(37): require_once('/home/leba/doma...')
#9 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-blog-header.php(13): require_once('/home/leba/doma...')
#10 /home/leba/domains/leba.eu/public_html/festiwalpomuchla/index.php(17): require('/home/leba/doma...')
#11 {main}
thrown in /home/leba/domains/leba.eu/public_html/festiwalpomuchla/wp-includes/class-wp-hook.php on line 288
WordPress › Błąd