Fatal error: Uncaught Error: Interface "PhpOffice\PhpSpreadsheet\RichText\ITextElement" not found in /home/romafi/cofortest/php/php-spreadsheet/src/PhpSpreadsheet/RichText/TextElement.php:7 Stack trace: #0 {main} thrown in /home/romafi/cofortest/php/php-spreadsheet/src/PhpSpreadsheet/RichText/TextElement.php on line 7