The mysql query is formed, displayed, but an error comes out after a time, what's the problem?

Question

MySQL

The request is formed, but constantly swears at the request, there is data in the table, it exits every other time. Pliz tell me where to look.
A Database Error Occurred
Error Number: 1356
View 'ru-rv-od.n0001_contract' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
SELECT COUNT(*) AS `numrows` FROM `n0001_contract` WHERE `lb0001_id` = '105' AND `lb0206_id` = 'ie' AND `lb0201_id` = 'CANCELED'
Filename: name/name.php
Line Number: 177
Code:
function dbResultSize($src ,$where=null,$like=null){
$CI =& get_instance();
if($where) $CI->db->where($where);
if($like) $CI->db->like($like);
$r=$CI->db->
if($r>0) return $r;
return null;
}

Answer 1

This is not a table, this is a view, judging by the error - it is broken.
If it works every other time, I can assume in telepath mode that you have a sql cluster and view is broken only on one of the nodes.