Warning: imagecreatefrompng(): gd-png: libpng warning: iCCP: known incorrect sRGB profile in /var/www/html/pages/signature.php on line 11

Fatal error: Uncaught Error: Call to undefined function imagettftext() in /var/www/html/pages/signature.php:13 Stack trace: #0 /var/www/html/system/load.page.php(7): include() #1 /var/www/html/index.php(37): include_once('/var/www/html/s...') #2 {main} thrown in /var/www/html/pages/signature.php on line 13