Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'pgc_id' in where clause is ambiguous' in /mnt/morningletter/www/pcenter/common/class/DB/PDO.ppw:74 Stack trace: #0 /mnt/morningletter/www/pcenter/common/class/DB/PDO.ppw(74): PDOStatement->execute(Array) #1 /mnt/morningletter/www/pcenter/common/class/PAPA/Program.ppw(1073): DB_PDO->execQuery('SELECT * FROM P...', Array) #2 /mnt/morningletter/www/pcenter/new2020/program/list.ppw(45): PAPA_Program->getProgramCategoryOnListNew('1', 30, Array, 'res') #3 {main} thrown in /mnt/morningletter/www/pcenter/common/class/DB/PDO.ppw on line 74