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37 Pointsplease help me in it?
Fatal error: Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '0' for key 'PRIMARY' in D:\PRO\Book\inc\functions.php:194 Stack trace: #0 D:\PRO\Book\inc\functions.php(194): PDOStatement->execute() #1 D:\PRO\Book\procedures\doRegister.php(21): createUser('papa.developer@...', '$2y$10$5wDyZpC6...') #2 {main} thrown in D:\PRO\Book\inc\functions.php on line 194