diff --git a/superset-frontend/src/components/ErrorMessage/ErrorMessageWithStackTrace.tsx b/superset-frontend/src/components/ErrorMessage/ErrorMessageWithStackTrace.tsx
index c28e5b11366..7884babc702 100644
--- a/superset-frontend/src/components/ErrorMessage/ErrorMessageWithStackTrace.tsx
+++ b/superset-frontend/src/components/ErrorMessage/ErrorMessageWithStackTrace.tsx
@@ -54,7 +54,8 @@ export function ErrorMessageWithStackTrace({
   // Check if a custom error message component was registered for this message
   if (error) {
     const ErrorMessageComponent = getErrorMessageComponentRegistry().get(
-      error.error_type,
+      // @ts-ignore: plan to modify this part so that all errors in Superset 6.0 are standardized as Superset API error types
+      error.errorType ?? error.error_type,
     );
     if (ErrorMessageComponent) {
       return (
diff --git a/superset-frontend/src/explore/components/controls/DatasourceControl/index.jsx b/superset-frontend/src/explore/components/controls/DatasourceControl/index.jsx
index cbd4705d65d..0a5d5b84886 100644
--- a/superset-frontend/src/explore/components/controls/DatasourceControl/index.jsx
+++ b/superset-frontend/src/explore/components/controls/DatasourceControl/index.jsx
@@ -95,6 +95,7 @@ const Styles = styled.div`
   }
   .error-alert {
     margin: ${({ theme }) => 2 * theme.sizeUnit}px;
+    min-height: 150px;
   }
   .ant-dropdown-trigger {
     margin-left: ${({ theme }) => 2 * theme.sizeUnit}px;
@@ -454,16 +455,14 @@ class DatasourceControl extends PureComponent {
         {isMissingDatasource && !isMissingParams && (
           <div className="error-alert">
             {extra?.error ? (
-              <div className="error-alert">
-                <ErrorMessageWithStackTrace
-                  title={extra.error.statusText || extra.error.message}
-                  subtitle={
-                    extra.error.statusText ? extra.error.message : undefined
-                  }
-                  error={extra.error}
-                  source="explore"
-                />
-              </div>
+              <ErrorMessageWithStackTrace
+                title={extra.error.statusText || extra.error.message}
+                subtitle={
+                  extra.error.statusText ? extra.error.message : undefined
+                }
+                error={extra.error}
+                source="explore"
+              />
             ) : (
               <ErrorAlert
                 type="warning"