If you have access to FTP open that file and find:
getItemsWithPermission($where = [], $order = null, $limit = 10, $permissionKey = 'read', $includeHiddenItems = null, $queryFlags = 0, ?IPS\Member $member = null, $joinContainer = false, $joinComments = false, $joinReviews = false, $countOnly = false, $joins = null, $skipPermission = false, $joinTags = true, $joinAuthor = true, $joinLastCommenter = true, $showMovedLinks = false)
Change to:
getItemsWithPermission($where = [], $order = null, $limit = 10, $permissionKey = 'read', $includeHiddenItems = IPS\Content\Hideable::FILTER_AUTOMATIC, $queryFlags = 0, ?IPS\Member $member = null, $joinContainer = false, $joinComments = false, $joinReviews = false, $countOnly = false, $joins = null, $skipPermission = false, $joinTags = true, $joinAuthor = true, $joinLastCommenter = true, $showMovedLinks = false, $location = null)
Save and try again.