Warning: Trying to access array offset on value of type bool in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php on line 274 Warning: Undefined array key 0 in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php on line 302 Warning: Trying to access array offset on value of type null in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php on line 302 Warning: Trying to access array offset on value of type bool in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php on line 306 Warning: Trying to access array offset on value of type bool in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php on line 307 Fatal error: Uncaught TypeError: Unsupported operand types: string - int in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php:307 Stack trace: #0 /customers/b/d/3/goethe-verlag.com/httpd.www/book2/index.php(74): clsCommon->funcGetAllSelectLessonsdata1('VI', 'BG', '103') #1 {main} thrown in /customers/b/d/3/goethe-verlag.com/httpd.www/database/common.class.php on line 307