merhaba wp admin panelinde aşağıdaki kodlar görünüyor acaba anlayan biri ne olduğunu söyleyebilir mi ?

M_Bulk_Installer_Skin::before() should be compatible with Bulk_Upgrader_Skin::before($title = '') in /home/popn2/public_html/wp-content/themes/popna/extensions/class-tgm-plugin-activation.php on line 3853

Warning: Declaration of TGM_Bulk_Installer_Skin::after() should be compatible with Bulk_Upgrader_Skin::after($title = '') in /home/popn2/public_html/wp-content/themes/popna/extensions/class-tgm-plugin-activation.php on line 3853

Warning: Cannot modify header information - headers already sent by (output started at /home/popn2/public_html/wp-content/themes/popna/extensions/class-tgm-plugin-activation.php:3853) in /home/popn2/public_html/wp-includes/functions.php on line 6029

Warning: Cannot modify header information - headers already sent by (output started at /home/popn2/public_html/wp-content/themes/popna/extensions/class-tgm-plugin-activation.php:3853) in /home/popn2/public_html/wp-admin/includes/misc.php on line 1252

Warning: Cannot modify header information - headers already sent by (output started at /home/popn2/public_html/wp-content/themes/popna/extensions/class-tgm-plugin-activation.php:3853) in /home/popn2/public_html/wp-admin/admin-header.php on line 9