PHPthumb error with ~username unix account alias

$PHPTHUMB_CONFIG['allow_src_above_docroot'] = false;

$PHPTHUMB_CONFIG['allow_src_above_docroot'] = true;

phpThumb() v1.7.11-201108081537 http://phpthumb.sourceforge.net Error messages disabled phpThumb() v1.7.11-201108081537 in file "phpthumb.class.php" on line 216 setSourceFilename(/home/joomlauser/public_html/images/stories/flexicontent/item_1_field_17/original/coming.jpg) set $this->sourceFilename to "/home/joomlauser/public_html/images/stories/flexicontent/item_1_field_17/original/coming.jpg" in file "phpthumb.class.php" on line 262 file_exists() = 0 in file "phpthumb.class.php" on line 1165 file_exists_ignoreopenbasedir() = 0 in file "phpthumb.class.php" on line 1166 is_file() = 0 in file "phpthumb.class.php" on line 1167 is_executable() = 0 in file "phpthumb.class.php" on line 1168 using ImageMagick path from `which convert` (/usr/bin/convert) in file "phpthumb.class.php" on line 1188 ImageMagick version checked with "convert --version" in file "phpthumb.class.php" on line 1215 ImageMagick convert --version says "Version: ImageMagick 6.2.8 05/08/12 Q16 file:" in file "phpthumb.class.php" on line 1223 Addding ImageMagick formats to $AvailableImageOutputFormats (text;ico;bmp;wbmp;gif;png;jpeg) in file "phpthumb.class.php" on line 917 $AvailableImageOutputFormats = array(text;ico;bmp;wbmp;gif;png;jpeg) in file "phpthumb.class.php" on line 923 $this->thumbnailFormat set to $this->config_output_format "jpeg" in file "phpthumb.class.php" on line 934 $this->thumbnailQuality set to "90" in file "phpthumb.class.php" on line 951 !$this->config_allow_src_above_docroot therefore setting "/home/joomlauser/public_html/images/stories/flexicontent/item_1_field_17/original/coming.jpg" (outside "/usr/local/apache/htdocs") to null in file "phpthumb.class.php" on line 1106 $this->sourceFilename set to "" in file "phpthumb.class.php" on line 852 phpThumb() v1.7.11-201108081537 http://phpthumb.sourceforge.net Error messages disabled in file "phpthumb.class.php" on line 3847 setCacheDirectory() starting with config_cache_directory = "" in file "phpthumb.class.php" on line 958 $this->config_cache_directory () is not a directory in file "phpthumb.class.php" on line 994 SetCacheFilename() failed because $this->config_cache_directory is empty in file "phpthumb.class.php" on line 3203 starting ExtractEXIFgetImageSize() in file "phpthumb.class.php" on line 3035 skipping GetImageSize() because $this->sourceFilename is empty in file "phpthumb.class.php" on line 3047 GetImageSize("") failed in file "phpthumb.class.php" on line 3078 $this->useRawIMoutput=true after checking $UnAllowedParameters in file "phpthumb.class.php" on line 1315 ImageMagickThumbnailToGD() aborting because $this->sourceFilename is empty in file "phpthumb.class.php" on line 1359 ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3085 SetOrientationDependantWidthHeight() starting with ""x"" in file "phpthumb.class.php" on line 3014 SetOrientationDependantWidthHeight() setting w="800", h="600" in file "phpthumb.class.php" on line 3030 EXIF thumbnail extraction: (size=0; type=""; 0x0) in file "phpthumb.class.php" on line 3142 starting SourceImageToGD() in file "phpthumb.class.php" on line 3400 Not using EXIF thumbnail data because $this->exif_thumbnail_data is empty in file "phpthumb.class.php" on line 3471 $this->gdimg_source is still empty in file "phpthumb.class.php" on line 3523 ImageMagickThumbnailToGD() failed in file "phpthumb.class.php" on line 3525 phpThumb() v1.7.11-201108081537 http://phpthumb.sourceforge.net Error messages disabled in file "phpthumb.class.php" on line 3847 SourceImageToGD() failed in file "phpthumb.class.php" on line 342