Warning: A non-numeric value encountered in system/modules/core/library/Contao/Picture.php on line 241
#0 system/modules/core/library/Contao/Picture.php(241): __error(2, 'A non-numeric v...', '/var/www/virtua...', 241, Array)
#1 system/modules/core/library/Contao/Picture.php(198): Contao\Picture->getTemplateDataSource(Object(stdClass))
#2 system/modules/core/library/Contao/Controller.php(1495): Contao\Picture->getTemplateData()
#3 system/modules/core/elements/ContentText.php(72): Contao\Controller::addImageToTemplate(Object(Contao\FrontendTemplate), Array)
#4 system/modules/core/elements/ContentElement.php(260): Contao\ContentText->compile()
#5 system/modules/core/library/Contao/Controller.php(476): Contao\ContentElement->generate()
#6 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#7 system/modules/core/modules/Module.php(282): Contao\ModuleArticle->compile()
#8 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#9 system/modules/core/modules/ModuleArticle.php(287): Contao\ModuleArticle->generate()
#10 system/modules/core/library/Contao/Controller.php(391): Contao\ModuleArticle->generatePdf()
#11 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#12 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#13 system/modules/core/controllers/FrontendIndex.php(267): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#14 index.php(20): Contao\FrontendIndex->run()
#15 {main}

Warning: chr() expects parameter 1 to be int, string given in vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php on line 1671
#0 [internal function]: __error(2, 'chr() expects p...', '/var/www/virtua...', 1671, Array)
#1 vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(1671): chr('')
#2 vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(1803): TCPDF_FONTS::unichr('', true)
#3 vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2095): TCPDF_FONTS::UTF8ArrSubString(Array, 0, 1, true)
#4 vendor/tecnickcom/tcpdf/tcpdf.php(1960): TCPDF_FONTS::utf8Bidi(Array, '', false, true, NULL)
#5 system/modules/core/modules/ModuleArticle.php(353): TCPDF->__construct('P', 'mm', 'A4', true)
#6 system/modules/core/library/Contao/Controller.php(391): Contao\ModuleArticle->generatePdf()
#7 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#8 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#9 system/modules/core/controllers/FrontendIndex.php(267): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#10 index.php(20): Contao\FrontendIndex->run()
#11 {main}
TCPDF ERROR: Some data has already been output, can't send PDF file