Fatal error
: Uncaught Error: Class 'Theme' not found in E:\xampp\htdocs\teacher2\m\inc\class\jpgraph\themes\PastelTheme.class.php:6 Stack trace: #0 {main} thrown in
E:\xampp\htdocs\teacher2\m\inc\class\jpgraph\themes\PastelTheme.class.php
on line
6