Fatal error: Uncaught TypeError: DBWorkDozenten::getDozenten4KursWB(): Argument #1 ($pKnr) must be of type string, null given, called in /home/www/public/fileadmin/kuferweb/classes/export/ExportCalculation.php on line 2178 and defined in /home/www/public/fileadmin/kuferweb/classes/db/DBWorkDozenten.php:1301 Stack trace: #0 /home/www/public/fileadmin/kuferweb/classes/export/ExportCalculation.php(2178): DBWorkDozenten->getDozenten4KursWB(NULL) #1 /home/www/public/fileadmin/kuferweb/classes/export/ExportKursuebersicht.php(41): ExportCalculation->getVarValue4Kurs('doz_1_vorname', Object(Kurs)) #2 /home/www/public/fileadmin/kuferweb/classes/exportadapter/Exportadapter.php(373): ExportKursuebersicht->getVarValue('k_doz_1_vorname') #3 /home/www/public/fileadmin/kuferweb/classes/exportadapter/ExportadapterVariableProviderAdapter.php(41): Exportadapter->getVarValue('k_doz_1_vorname') #4 /home/www/public/fileadmin/kuferweb/classes/scripting/ScriptingEngineHTMLScript2.php(149): Kufer\Web\Classes\Exportadapter\ExportadapterVariableProviderAdapter->getVarValue('k_doz_1_vorname') #5 /home/www/public/fileadmin/kuferweb/classes/scripting/ScriptingEngineHTMLScript2.php(127): Kufer\Web\Classes\Scripting\ScriptingEngineHTMLScript2->getVarValue(Object(Kufer\Web\Classes\Exportadapter\ExportadapterVariableProviderAdapter), 'k_doz_1_vorname') #6 /home/www/public/fileadmin/kuferweb/classes/scripting/ScriptingEngineHTMLScript2.php(20): Kufer\Web\Classes\Scripting\ScriptingEngineHTMLScript2->fillVarsByVariableList(Object(Kufer\Web\Classes\Exportadapter\ExportadapterVariableProviderAdapter), '<table cellpadd...', Array) #7 /home/www/public/fileadmin/kuferweb/classes/exportadapter/Exportadapter.php(428): Kufer\Web\Classes\Scripting\ScriptingEngineHTMLScript2->interpret(Object(Kufer\Web\Classes\Exportadapter\ExportadapterVariableProviderAdapter), '<table cellpadd...', NULL) #8 /home/www/public/fileadmin/kuferweb/classes/datamenu/DataMenuBasis.php(215): Exportadapter->replaceVarNames() #9 /home/www/public/fileadmin/kuferweb/classes/datamenu/DataMenuBasis.php(145): DataMenuBasis->renderSightPart('<table cellpadd...', Object(ExpKurse), Array, Array, true, false) #10 /home/www/public/fileadmin/kuferweb/webbasys/include/pdf/KwPdfTermine.php(53): DataMenuBasis->getheader() #11 /home/www/public/fileadmin/kuferweb/webbasys/include/pdf/KuferWebHtml2Pdf.php(45): Kufer\Webbasys\Includee\Pdf\KwPdfTermine->getContent() #12 /home/www/public/fileadmin/kuferweb/webbasys/pdf.php(27): Kufer\Webbasys\Includee\Pdf\KuferWebHtml2Pdf->generatePdf() #13 {main} thrown in /home/www/public/fileadmin/kuferweb/classes/db/DBWorkDozenten.php on line 1301