Fatal error: Uncaught ArgumentCountError: Too few arguments to function BookModel::__construct(), 0 passed in /home/jurinfor/domains/jurinfor.ru/public_html/library/buy-form-step.php on line 43 and exactly 1 expected in /home/jurinfor/domains/jurinfor.ru/public_html/library/book-model.inp:13 Stack trace: #0 /home/jurinfor/domains/jurinfor.ru/public_html/library/buy-form-step.php(43): BookModel->__construct() #1 {main} thrown in /home/jurinfor/domains/jurinfor.ru/public_html/library/book-model.inp on line 13