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#0 vendor/tecnickcom/tcpdf/tcpdf.php(18807): __error(2, 'Illegal string ...', '/home/buserund/...', 18807, Array)
#1 vendor/tecnickcom/tcpdf/tcpdf.php(18278): TCPDF->openHTMLTagHandler(Array, 29, 0)
#2 system/modules/core/modules/ModuleArticle.php(388): TCPDF->writeHTML('