add exception to logger

dspace-api/src/main/java/org/dspace/importer/external/endnote/service/EndnoteImportMetadataSourceServiceImpl.java

@@ -78,7 +78,7 @@ protected List<PlainMetadataSourceDto> readData(InputStream fileInpuStream) thro
                 lineForDebug++;
             }
         } catch (Exception e) {
-            throw new FileSourceException("Error reading file");
+            throw new FileSourceException("Error reading file", e);
         }
         return list;
     }