Warning: array_push() expects parameter 1 to be array, null given in vendor/tecnick.com/tcpdf/tcpdf.php on line 16918 
#0 [internal function]: __error(2, 'array_push() ex...', '/var/www/vhosts...', 16918, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(16918): array_push(NULL, 55)
#2 vendor/tecnick.com/tcpdf/tcpdf.php(17199): TCPDF->getHtmlDomArray(' 
generatePdf()
#5 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#6 system/modules/core/pages/PageRegular.php(129): Contao\Controller::getFrontendModule('0', 'main')
#7 system/modules/core/controllers/FrontendIndex.php(244): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}

Warning: array_push() expects parameter 1 to be array, null given in vendor/tecnick.com/tcpdf/tcpdf.php on line 16918 
#0 [internal function]: __error(2, 'array_push() ex...', '/var/www/vhosts...', 16918, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(16918): array_push(NULL, 111)
#2 vendor/tecnick.com/tcpdf/tcpdf.php(17199): TCPDF->getHtmlDomArray(' 
generatePdf()
#5 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#6 system/modules/core/pages/PageRegular.php(129): Contao\Controller::getFrontendModule('0', 'main')
#7 system/modules/core/controllers/FrontendIndex.php(244): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}

Warning: array_push() expects parameter 1 to be array, null given in vendor/tecnick.com/tcpdf/tcpdf.php on line 16918 
#0 [internal function]: __error(2, 'array_push() ex...', '/var/www/vhosts...', 16918, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(16918): array_push(NULL, 162)
#2 vendor/tecnick.com/tcpdf/tcpdf.php(17199): TCPDF->getHtmlDomArray(' 
generatePdf()
#5 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#6 system/modules/core/pages/PageRegular.php(129): Contao\Controller::getFrontendModule('0', 'main')
#7 system/modules/core/controllers/FrontendIndex.php(244): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}

Warning: array_push() expects parameter 1 to be array, null given in vendor/tecnick.com/tcpdf/tcpdf.php on line 16918 
#0 [internal function]: __error(2, 'array_push() ex...', '/var/www/vhosts...', 16918, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(16918): array_push(NULL, 213)
#2 vendor/tecnick.com/tcpdf/tcpdf.php(17199): TCPDF->getHtmlDomArray(' 
generatePdf()
#5 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#6 system/modules/core/pages/PageRegular.php(129): Contao\Controller::getFrontendModule('0', 'main')
#7 system/modules/core/controllers/FrontendIndex.php(244): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}

Warning: array_push() expects parameter 1 to be array, null given in vendor/tecnick.com/tcpdf/tcpdf.php on line 16918 
#0 [internal function]: __error(2, 'array_push() ex...', '/var/www/vhosts...', 16918, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(16918): array_push(NULL, 264)
#2 vendor/tecnick.com/tcpdf/tcpdf.php(17199): TCPDF->getHtmlDomArray(' 
generatePdf()
#5 system/modules/core/library/Contao/Controller.php(269): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#6 system/modules/core/pages/PageRegular.php(129): Contao\Controller::getFrontendModule('0', 'main')
#7 system/modules/core/controllers/FrontendIndex.php(244): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}

Warning: Invalid argument supplied for foreach() in vendor/tecnick.com/tcpdf/tcpdf.php on line 19477 
#0 vendor/tecnick.com/tcpdf/tcpdf.php(19477): __error(2, 'Invalid argumen...', '/var/www/vhosts...', 19477, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(18283): TCPDF->closeHTMLTagHandler(Array, 315, 0, 212.67084266667)
#2 system/modules/core/modules/ModuleArticle.php(352): TCPDF->writeHTML(' 

#0 vendor/tecnick.com/tcpdf/tcpdf.php(19509): __error(2, 'Invalid argumen...', '/var/www/vhosts...', 19509, Array)
#1 vendor/tecnick.com/tcpdf/tcpdf.php(18283): TCPDF->closeHTMLTagHandler(Array, 315, 0, 212.67084266667)
#2 system/modules/core/modules/ModuleArticle.php(352): TCPDF->writeHTML('