Cannot access "configuration" menu (dompdf error?)

mambo
Forums
Hello, After installing Opigno, I cannot access *configuration* menu anymore: "The website encountered an unexpected error. Please try again later." I checked the error log and apparently there is a problem with Dompdf but I cannot solve it. Anyone knows how I could solve it please? [:error] [pid 930] [client 103.200.133.27:53034] ParseError: syntax error, unexpected '=' in /var/www/html/drupal/profiles/opigno_lms/libraries/dompdf/src/Dompdf.php on line 356 n#0 [internal function]: Dompdf\\Autoloader::autoload('Dompdf\\\\Dompdf')\ n#1 [internal function]: spl_autoload_call('Dompdf\\\\Dompdf')\ n#2 /var/www/html/drupal/profiles/opigno_lms/modules/contrib/entity_print/src/Plugin/EntityPrint/PrintEngine/DomPdf.php(222): class_exists('Dompdf\\\\Dompdf')\ n#3 /var/www/html/drupal/profiles/opigno_lms/modules/contrib/entity_print/entity_print.install(44): Drupal\\entity_print\\Plugin\\EntityPrint\\PrintEngine\\DomPdf::dependenciesAvailable()\ n#4 [internal function]: entity_print_requirements('runtime')\ n#5 /var/www/html/drupal/core/lib/Drupal/Core/Extension/ModuleHandler.php(403): call_user_func_array('entity_print_re...', Array)\ n#6 /var/www/html/drupal/core/modules/system/src/SystemManager.php(111): Drupal\\Core\\Extension\\ModuleHandler->invokeAll('requirements', Array)\ n#7 /var/www/html/drupal/core/modules/system/src/SystemManager.php(95): Drupal\\system\\SystemManager->listRequirements()\ n#8 /var/www/html/drupal/core/modules/system/src/Controller/SystemController.php(102): Drupal\\system\\SystemManager->checkRequirements()\ n#9 [internal function]: Drupal\\system\\Controller\\SystemController->overview('system.admin_co...')\ n#10 /var/www/html/drupal/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)\ (etc.)