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Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, null given in C:\inetpub\vhosts\gtfrechnologies.co.in\appl.ind.in\micro.php:174 Stack trace: #0 C:\inetpub\vhosts\gtfrechnologies.co.in\appl.ind.in\micro.php(174): mysqli_num_rows() #1 {main} thrown in C:\inetpub\vhosts\gtfrechnologies.co.in\appl.ind.in\micro.php on line 174