#0 system/modules/formrecipient/FormRecipient.php(12): __error()
#1 system/modules/core/library/Contao/ClassLoader.php(148): include('/kunden/enckhoo...')
#2 [internal function]: Contao\ClassLoader::load()
#3 [internal function]: spl_autoload_call()
#4 system/modules/core/library/Contao/Controller.php(473): class_exists()
#5 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement()
#6 system/modules/core/modules/Module.php(287): Contao\ModuleArticle->compile()
#7 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#8 system/modules/core/modules/ModuleArticle.php(287): Contao\ModuleArticle->generate()
#9 system/modules/core/library/Contao/Controller.php(399): Contao\ModuleArticle->generatePdf()
#10 system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle()
#11 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule()
#12 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate()
#13 index.php(20): Contao\FrontendIndex->run()
#14 {main}

#0 [internal function]: __error()
#1 vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(1671): chr()
#2 vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(1803): TCPDF_FONTS::unichr()
#3 vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php(2099): TCPDF_FONTS::UTF8ArrSubString()
#4 vendor/tecnickcom/tcpdf/tcpdf.php(1963): TCPDF_FONTS::utf8Bidi()
#5 system/modules/core/modules/ModuleArticle.php(353): TCPDF->__construct()
#6 system/modules/core/library/Contao/Controller.php(399): Contao\ModuleArticle->generatePdf()
#7 system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle()
#8 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule()
#9 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate()
#10 index.php(20): Contao\FrontendIndex->run()
#11 {main}