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Fatal error: Uncaught TypeError: sqlsrv_query(): Argument #1 ($conn) must be of type resource, false given in C:\wamp64\www\React_mob_Dev\CAFMS\8.4\get_wkr_master_location.php:29 Stack trace: #0 C:\wamp64\www\React_mob_Dev\CAFMS\8.4\get_wkr_master_location.php(29): sqlsrv_query(false, 'SELECT \tDISTINC...') #1 {main} thrown in C:\wamp64\www\React_mob_Dev\CAFMS\8.4\get_wkr_master_location.php on line 29