Fatal error: Uncaught PDOException: SQLSTATE[21000]: Cardinality violation: 1242 Subquery returns more than 1 row in /home/u104019684/domains/abibliaonline.com/public_html/models/ChaptersModel.php:17 Stack trace: #0 /home/u104019684/domains/abibliaonline.com/public_html/models/ChaptersModel.php(17): PDOStatement->execute() #1 /home/u104019684/domains/abibliaonline.com/public_html/controllers/ChaptersController.php(11): ChaptersModel->getAllChaptersByBook() #2 /home/u104019684/domains/abibliaonline.com/public_html/controllers/Routes.php(53): ChaptersController->index() #3 /home/u104019684/domains/abibliaonline.com/public_html/controllers/Routes.php(24): {closure}() #4 /home/u104019684/domains/abibliaonline.com/public_html/core/Core.php(17): Routes->submit() #5 /home/u104019684/domains/abibliaonline.com/public_html/index.php(18): Core->start() #6 {main} thrown in /home/u104019684/domains/abibliaonline.com/public_html/models/ChaptersModel.php on line 17