Notice: getimagesize(): Read error! in /opt/lampp/htdocs/opac/lib/phpthumb/phpThumb.php on line 37

Notice: getimagesize(): Read error! in /opt/lampp/htdocs/opac/lib/phpthumb/GdThumb.inc.php on line 1070

Fatal error: Uncaught exception 'Exception' with message 'File is not a valid image: ../../images/docs/' in /opt/lampp/htdocs/opac/lib/phpthumb/ThumbBase.inc.php:193 Stack trace: #0 /opt/lampp/htdocs/opac/lib/phpthumb/GdThumb.inc.php(1081): ThumbBase->triggerError('File is not a v...') #1 /opt/lampp/htdocs/opac/lib/phpthumb/GdThumb.inc.php(98): GdThumb->determineFormat() #2 /opt/lampp/htdocs/opac/lib/phpthumb/ThumbLib.inc.php(127): GdThumb->__construct('../../images/do...', Array, false) #3 /opt/lampp/htdocs/opac/lib/phpthumb/phpThumb.php(60): PhpThumbFactory::create('../../images/do...') #4 {main} thrown in /opt/lampp/htdocs/opac/lib/phpthumb/ThumbBase.inc.php on line 193