After I pressed “Delete query” I replaced to page with address …/wp-content/plugins/wpsc-support-tickets/php/delete_ticket.php?ticketid=2 – it is clear page with one question “Балуемся?” (“Frolic?”). That’s all. Process stoped on this step.
Please answer what table in database can I delete to clearing all data of plugin? I want to try reinstall it from zero.