Strict Standards: Non-static method IS_IU_Import_Users::init() should not be called statically in /var/www/vhosts/gasmarket/materiales/wp-content/plugins/import-users-from-csv/import-users-from-csv.php on line 374 Strict Standards: call_user_func_array() expects parameter 1 to be a valid callback, non-static method IS_IU_Import_Users::process_csv() should not be called statically in /var/www/vhosts/gasmarket/materiales/wp-includes/plugin.php on line 496 Gasmarket® Materiales