diff --git a/frontend/src/components/dialog/sysadmin-dialog/sysadmin-logs-export-excel-dialog.js b/frontend/src/components/dialog/sysadmin-dialog/sysadmin-logs-export-excel-dialog.js
index 7c7a6e2896..9187d9fbb5 100644
--- a/frontend/src/components/dialog/sysadmin-dialog/sysadmin-logs-export-excel-dialog.js
+++ b/frontend/src/components/dialog/sysadmin-dialog/sysadmin-logs-export-excel-dialog.js
@@ -76,7 +76,7 @@ class LogsExportExcelDialog extends React.Component {
         if (error_msg && error_msg !== 'Internal Server Error') {
           toaster.danger(error_msg);
         } else {
-          toaster.danger(gettext('Internal Server Error.'));
+          toaster.danger(gettext('Internal Server Error'));
         }
       } else {
         let errMessage = Utils.getErrorMsg(error);
diff --git a/frontend/src/components/subscription.js b/frontend/src/components/subscription.js
index 98fcba86a6..bda1b995d5 100644
--- a/frontend/src/components/subscription.js
+++ b/frontend/src/components/subscription.js
@@ -57,7 +57,7 @@ class Plans extends Component {
       assetQuota = (assetQuotaUnitCount) * currentPlan.asset_quota_unit;
       totalAmount = assetQuotaUnitCount * currentPlan.price_per_asset_quota_unit;
     } else {
-      toaster.danger(gettext('Internal Server Error.'));
+      toaster.danger(gettext('Internal Server Error'));
       return;
     }
 
@@ -264,7 +264,7 @@ class Plans extends Component {
     } else if (paymentType === 'buy_quota') {
       return this.renderBuyQuota();
     } else {
-      toaster.danger(gettext('Internal Server Error.'));
+      toaster.danger(gettext('Internal Server Error'));
       return;
     }
   }
diff --git a/frontend/src/pages/institution-admin/user-list/user-item.js b/frontend/src/pages/institution-admin/user-list/user-item.js
index 3ce7bca793..8929b07152 100644
--- a/frontend/src/pages/institution-admin/user-list/user-item.js
+++ b/frontend/src/pages/institution-admin/user-list/user-item.js
@@ -9,13 +9,13 @@ import moment from 'moment';
 const OPERATIONS = [
   {
     value: 'active',
-    text: gettext('active'),
+    text: gettext('Active'),
     is_active: true,
     isSelected: false,
   },
   {
     value: 'inactive',
-    text: gettext('inactive'),
+    text: gettext('Inactive'),
     is_active: false,
     isSelected: false,
   },
diff --git a/seahub/api2/endpoints/repo_auto_delete.py b/seahub/api2/endpoints/repo_auto_delete.py
index 2eb1d34893..a30715ba85 100644
--- a/seahub/api2/endpoints/repo_auto_delete.py
+++ b/seahub/api2/endpoints/repo_auto_delete.py
@@ -83,6 +83,6 @@ class RepoAutoDeleteView(APIView):
             repo_auto_delete, _ = RepoAutoDelete.objects.update_or_create(repo_id=repo_id, defaults={'days':auto_delete_days})
         except Exception as e:
             logger.error(e)
-            return api_error(status.HTTP_500_INTERNAL_SERVER_ERROR, 'Internal Server Error.')
+            return api_error(status.HTTP_500_INTERNAL_SERVER_ERROR, 'Internal Server Error')
 
         return Response({'auto_delete_days':repo_auto_delete.days})
\ No newline at end of file
diff --git a/seahub/organizations/api/admin/saml_config.py b/seahub/organizations/api/admin/saml_config.py
index 00fe2afd8b..c285a1ba7c 100644
--- a/seahub/organizations/api/admin/saml_config.py
+++ b/seahub/organizations/api/admin/saml_config.py
@@ -31,7 +31,7 @@ def query_dns_txt_record(domain):
         return True, api_error(status.HTTP_404_NOT_FOUND, '%s does not exist' % domain)
     except Exception as e:
         logger.exception(e)
-        return True, api_error(status.HTTP_500_INTERNAL_SERVER_ERROR, 'Internal Server Error.')
+        return True, api_error(status.HTTP_500_INTERNAL_SERVER_ERROR, 'Internal Server Error')
 
 
 class OrgSAMLConfigView(APIView):