Fatal error: Uncaught Error: Interface "PHPExcel_RichText_ITextElement" not found in /home/edepracl/public_html/moodle30/lib/phpexcel/PHPExcel/RichText/TextElement.php:26 Stack trace: #0 {main} thrown in /home/edepracl/public_html/moodle30/lib/phpexcel/PHPExcel/RichText/TextElement.php on line 26