Fatal error: Uncaught Error: Call to undefined function imagecreatefromstring() in /var/www/html/odsphpgenerator/ods/class/odsTableCell.php:434 Stack trace: #0 /var/www/html/odsphpgenerator/pages/examples.php(70) : eval()'d code(65): odsTableCellImage->__construct('imgs/logo.png') #1 /var/www/html/odsphpgenerator/pages/examples.php(70): eval() #2 /var/www/html/odsphpgenerator/pages/examples.php(136): test() #3 /var/www/html/odsphpgenerator/pages/examples.php(41): read() #4 /var/www/html/odsphpgenerator/index.php(44): getContent() #5 {main} thrown in /var/www/html/odsphpgenerator/ods/class/odsTableCell.php on line 434