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Fatal error: Uncaught ValueError: PDO::prepare(): Argument #1 ($query) cannot be empty in C:\Abyss Web Server\htdocs\pulse.php:53 Stack trace: #0 C:\Abyss Web Server\htdocs\pulse.php(53): PDO->prepare() #1 {main} thrown in C:\Abyss Web Server\htdocs\pulse.php on line 53