Fatal error: Uncaught Error: Class "PKP\plugins\GenericPlugin" not found in /home/reiducl/public_html/plugins/generic/pdfJsViewer/PdfJsViewerPlugin.php:22 Stack trace: #0 {main} thrown in /home/reiducl/public_html/plugins/generic/pdfJsViewer/PdfJsViewerPlugin.php on line 22