vt750: Warning: Undefined variable $params in /var/www/html/vtigercrm/modules/CustomView/models/Record.php on line 238

@prasad See this line:

https://code.vtiger.com/vtiger/vtigercrm/blob/master/modules/CustomView/models/Record.php#L238

$params can be undefined. Probably should be initialised to an empty array earlier in method...