Hello,
I imported an Album from Discogos and then I assigned a picture. The picture is a JPG with a dimension of 300x300 (18 KB).

If you look this site

http://www.musicalatina.net/component/muscol/l/1-jennifer-lopez/1-love

You will see this error:

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Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /var/www/virtual/musicalatina.net/htdocs/components/com_muscol/helpers/graphics.php on line 111

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /var/www/virtual/musicalatina.net/htdocs/components/com_muscol/helpers/graphics.php on line 114

Warning: imagejpeg(): supplied argument is not a valid Image resource in /var/www/virtual/musicalatina.net/htdocs/components/com_muscol/helpers/graphics.php on line 120
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How to remove these warnings?