Page not found

HTTP 404 (GET /site/index.php?option=com_k2&view=itemlist&task=calendar&month=5&year=2018&Itemid=254)

[cms/framework/f3/base.php:1706] Base->error()
[cms/app.php:24] Base->run()
[index.php:16] App->run()

DB LOG

(0.9ms) SHOW columns FROM `Sql1372003_4`.`config`
(0.6ms) SELECT `name`, `content` FROM `config` WHERE `enabled`=1 ORDER BY `id` ASC