Hello everyone! I have a problem with the sites I'm managing. I'm noticing very strange queries:

SELECT m.id, m.title AS name, m.link, m.id AS parent, 1 as expandible, 1 as selectable, 0 as doc_icon, "submenu" AS view FROM iave_menu AS m INNER JOIN iave_menu_types AS s ON s. menutype = m.menutype AND s.menutype = "" OR SLEEP (5) - yPMC "INNER JOIN #__menu AS c on c.parent_id = m.id WHERE m.published = 1 AND m.parent_id = 1 AND m. access IN (1,1) UNION SELECT m.id, m.title AS name, m.link, 0 AS parent, 0 as expandible, 1 as selectable, 1 as doc_icon, "submenu" AS view FROM #__menu AS m INNER JOIN #__menu_types AS s ON s.menutype = m.menutype AND s.menutype = "" OR SLEEP (5) - yPMC "LEFT JOIN iave_menu AS c on c.parent_id = m.id WHERE m.published = 1 AND c .id IS NULL AND m.parent_id = 1 AND m.access IN (1,1) ORDER BY name

Is that "OR SLEEP (5) - yPMC" normal? Also because the queries are going for 5 minutes without doing anything.

Sorry for my bad English.