Warning: imagecreatefrompng(http://i.computer-bild.de/imgs/3/3/4/4/1/9/6/Icon-Facebook-Desktop-48x48-87d28774cf88d6d0.png): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in vendor/contao/tcpdf/tcpdf.php on line 7007
#0 [internal function]: __error(2, 'imagecreatefrom...', '/home/danch/pub...', 7007, Array)
#1 vendor/contao/tcpdf/tcpdf.php(7007): imagecreatefrompng('http://i.comput...')
#2 vendor/contao/tcpdf/tcpdf.php(18800): TCPDF->Image('http://i.comput...', 15, 62.3908, 11.571111111111, 11.571111111111, '', '', 'B', false, 300, '', false, false, 0, false, false, true)
#3 vendor/contao/tcpdf/tcpdf.php(18209): TCPDF->openHTMLTagHandler(Array, 13, 0)
#4 system/modules/core/modules/ModuleArticle.php(361): TCPDF->writeHTML('