Fatal error: Uncaught Error: Call to undefined function import() in E:\xampp\htdocs\ejournal\public\plugins\generic\doiInSummary\DoiInSummaryPlugin.inc.php:8 Stack trace: #0 E:\xampp\htdocs\ejournal\public\plugins\generic\doiInSummary\index.php(8): require_once() #1 {main} thrown in E:\xampp\htdocs\ejournal\public\plugins\generic\doiInSummary\DoiInSummaryPlugin.inc.php on line 8