this is caused by trying to use a method to resize images which isnt supported by your server properly.
In the xcgal options there are 4 ways to resize images :
- Image Magick
- netpbm
- GD version 1.x
- GD version 2.x
One of these four will probably work for you.
Try them out (one at a time) and upload a picture to see if the resizing works correctly.
I believe your best bet is with GD version 2.x as I believe that is the most common on servers these days.
good luck !
greetings Highlander
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