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(' 
#0 [internal function]: __error(2, 'getimagesize(ht...', '/home/danch/pub...', 163, Array) #1 vendor/contao/tcpdf/include/tcpdf_images.php(163): getimagesize('http://vfl-mark...') #2 vendor/contao/tcpdf/tcpdf.php(6998): TCPDF_IMAGES::_parsejpeg('http://vfl-mark...') #3 vendor/contao/tcpdf/tcpdf.php(18800): TCPDF->Image('http://vfl-mark...', 15, 94.1428, 83.82, 28.222222222222, '', 'https://www.fac...', 'B', false, 300, '', false, false, 0, false, false, true) #4 vendor/contao/tcpdf/tcpdf.php(18209): TCPDF->openHTMLTagHandler(Array, 35, 0) #5 system/modules/core/modules/ModuleArticle.php(361): TCPDF->writeHTML('
#0 [internal function]: __error(2, 'imagecreatefrom...', '/home/danch/pub...', 7007, Array) #1 vendor/contao/tcpdf/tcpdf.php(7007): imagecreatefromjpeg('http://vfl-mark...') #2 vendor/contao/tcpdf/tcpdf.php(18800): TCPDF->Image('http://vfl-mark...', 15, 94.1428, 83.82, 28.222222222222, '', 'https://www.fac...', 'B', false, 300, '', false, false, 0, false, false, true) #3 vendor/contao/tcpdf/tcpdf.php(18209): TCPDF->openHTMLTagHandler(Array, 35, 0) #4 system/modules/core/modules/ModuleArticle.php(361): TCPDF->writeHTML('
#0 [internal function]: __error(2, 'Cannot modify h...', '/home/danch/pub...', 7631, Array) #1 vendor/contao/tcpdf/tcpdf.php(7631): header('Content-Descrip...') #2 system/modules/core/modules/ModuleArticle.php(365): TCPDF->Output('facebook.pdf', 'D') #3 system/modules/core/library/Contao/Controller.php(386): Contao\ModuleArticle->generatePdf() #4 system/modules/core/library/Contao/Controller.php(268): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main') #5 system/modules/core/pages/PageRegular.php(138): Contao\Controller::getFrontendModule('0', 'main') #6 index.php(260): Contao\PageRegular->generate(Object(Contao\PageModel), true) #7 index.php(444): Index->run() #8 {main}
TCPDF ERROR: Some data has already been output to browser, can't send PDF file