Hello Guys i'm getting an error in tv Script i reinstalled its 3-4 times but still getting the same error, whenever i try to Grab Custom thumbanil: it gives me this error

Code: 
<br /><b>Fatal error</b>:  Call to undefined function imageCreateFromJPEG() in <b>/home/tvshow/public_html/includes/imageTransform.php</b> on line <b>737</b><br />

i checked my imageTransform.php file and it's clean: here is this 737 line of the file

Code: 
return imageCreateFromJPEG($this->image);
i cant use autoembed also cause of this error
DevilLnC Reviewed by DevilLnC on . TVstreamscript error help needed Hello Guys i'm getting an error in tv Script i reinstalled its 3-4 times but still getting the same error, whenever i try to Grab Custom thumbanil: it gives me this error <br /><b>Fatal error</b>: Call to undefined function imageCreateFromJPEG() in <b>/home/tvshow/public_html/includes/imageTransform.php</b> on line <b>737</b><br /> i checked my imageTransform.php file and it's clean: here is this 737 line of the file Rating: 5