Thumbnail generation unsuccessful

<h1>Thumbnail generation unsuccessful</h1><ul><li> DEBUG post_id=96</li><li> DEBUG Found YAPB image</li><li> DEBUG w=460</li><li> DEBUG q=90</li><li> ERROR phpThumb couldn't generate thumbnail.</li><li> INFO Writing out phpThumb internal debug messages:</li><li> DEBUG phpThumb: phpThumb() v1.7.13-201406261000 in file "phpthumb.class.php" on line 220</li><li> DEBUG phpThumb: setSourceFilename(/home/ill/public_html/www.i-toushi.com/useful/wp-content/uploads/2010/03/%e9%83%bd%e9%81%93%e5%ba%9c%e7%9c%8c%e5%88%a5%e5%a4%89%e5%8b%95%e7%8e%87.JPG) set $this->sourceFilename to "/home/ill/public_html/www.i-toushi.com/useful/wp-content/uploads/2010/03/%e9%83%bd%e9%81%93%e5%ba%9c%e7%9c%8c%e5%88%a5%e5%a4%89%e5%8b%95%e7%8e%87.JPG" in file "phpthumb.class.php" on line 271</li><li> DEBUG phpThumb:                   file_exists() = 0 in file "phpthumb.class.php" on line 1335</li><li> DEBUG phpThumb: file_exists_ignoreopenbasedir() = 0 in file "phpthumb.class.php" on line 1336</li><li> DEBUG phpThumb:                       is_file() = 0 in file "phpthumb.class.php" on line 1337</li><li> DEBUG phpThumb:                 is_executable() = 0 in file "phpthumb.class.php" on line 1338</li><li> DEBUG phpThumb: using ImageMagick path from `which convert` (/bin/convert) in file "phpthumb.class.php" on line 1359</li><li> DEBUG phpThumb: ImageMagick version checked with "convert --version" in file "phpthumb.class.php" on line 1400</li><li> DEBUG phpThumb: ImageMagick convert --version says "Version: ImageMagick 6.9.13-25 Q16 " in file "phpthumb.class.php" on line 1408</li><li> DEBUG phpThumb: Addding ImageMagick formats to $AvailableImageOutputFormats (text;ico;bmp;wbmp;gif;png;jpeg) in file "phpthumb.class.php" on line 919</li><li> DEBUG phpThumb: $AvailableImageOutputFormats = array(text;ico;bmp;wbmp;gif;png;jpeg) in file "phpthumb.class.php" on line 925</li><li> DEBUG phpThumb: $this->thumbnailFormat set to $this->config_output_format "jpeg" in file "phpthumb.class.php" on line 936</li><li> DEBUG phpThumb: $this->thumbnailQuality set to "90" in file "phpthumb.class.php" on line 953</li><li> DEBUG phpThumb: ResolveFilenameToAbsolute() NOT prepending $this->config_document_root (/home/ill/public_html/www.i-toushi.com) to $filename (/home/ill/public_html/www.i-toushi.com/useful/wp-content/uploads/2010/03/%e9%83%bd%e9%81%93%e5%ba%9c%e7%9c%8c%e5%88%a5%e5%a4%89%e5%8b%95%e7%8e%87.JPG) resulting in ($AbsoluteFilename = "/home/ill/public_html/www.i-toushi.com/useful/wp-content/uploads/2010/03/%e9%83%bd%e9%81%93%e5%ba%9c%e7%9c%8c%e5%88%a5%e5%a4%89%e5%8b%95%e7%8e%87.JPG") in file "phpthumb.class.php" on line 1216</li><li> DEBUG phpThumb: resolvePath: /home/ill/public_html/www.i-toushi.com/useful/wp-content/uploads/2010/03/%e9%83%bd%e9%81%93%e5%ba%9c%e7%9c%8c%e5%88%a5%e5%a4%89%e5%8b%95%e7%8e%87.JPG (allowed_dirs: Array
(
)
) in file "phpthumb.class.php" on line 1096</li><li> DEBUG phpThumb: resolvePath: checks disabled, returning  in file "phpthumb.class.php" on line 1106</li><li> DEBUG phpThumb: $this->sourceFilename set to "" in file "phpthumb.class.php" on line 849</li><li> DEBUG phpThumb: phpThumb() v1.7.13-201406261000
http://phpthumb.sourceforge.net

Error messages disabled.

edit phpThumb.config.php and (temporarily) set
$PHPTHUMB_CONFIG['disable_debug'] = false;
to view the details of this error in file "phpthumb.class.php" on line 4050</li><li> DEBUG phpThumb: setCacheDirectory() starting with config_cache_directory = "" in file "phpthumb.class.php" on line 961</li><li> DEBUG phpThumb: $this->config_cache_directory () is not a directory in file "phpthumb.class.php" on line 997</li><li> DEBUG phpThumb: SetCacheFilename() failed because $this->config_cache_directory is empty in file "phpthumb.class.php" on line 3404</li><li> DEBUG phpThumb: starting ExtractEXIFgetImageSize() in file "phpthumb.class.php" on line 3236</li><li> DEBUG phpThumb: skipping GetImageSize() because $this->sourceFilename is empty in file "phpthumb.class.php" on line 3248</li><li> DEBUG phpThumb: GetImageSize("") failed in file "phpthumb.class.php" on line 3279</li><li> DEBUG phpThumb: $this->useRawIMoutput=true after checking $UnAllowedParameters in file "phpthumb.class.php" on line 1508</li><li> DEBUG phpThumb: ImageMagickThumbnailToGD() aborting because $this->sourceFilename is empty in file "phpthumb.class.php" on line 1552</li><li> DEBUG phpThumb: ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3286</li><li> DEBUG phpThumb: SetOrientationDependantWidthHeight() starting with ""x"" in file "phpthumb.class.php" on line 3215</li><li> DEBUG phpThumb: SetOrientationDependantWidthHeight() setting w="460", h="0" in file "phpthumb.class.php" on line 3231</li><li> DEBUG phpThumb: EXIF thumbnail extraction: (size=0; type=""; 0x0) in file "phpthumb.class.php" on line 3343</li><li> DEBUG phpThumb: starting SourceImageToGD() in file "phpthumb.class.php" on line 3603</li><li> DEBUG phpThumb: Not using EXIF thumbnail data because $this->exif_thumbnail_data is empty in file "phpthumb.class.php" on line 3674</li><li> DEBUG phpThumb: $this->gdimg_source is still empty in file "phpthumb.class.php" on line 3726</li><li> DEBUG phpThumb: ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3728</li><li> DEBUG phpThumb: phpThumb() v1.7.13-201406261000
http://phpthumb.sourceforge.net

Error messages disabled.

edit phpThumb.config.php and (temporarily) set
$PHPTHUMB_CONFIG['disable_debug'] = false;
to view the details of this error in file "phpthumb.class.php" on line 4050</li><li> DEBUG phpThumb: SourceImageToGD() failed in file "phpthumb.class.php" on line 351</li></ul>