New source found from dndbeyond.com

ddb_main/tools/js/CharacterBuilder/containers/pages/WhatsNext/WhatsNext.tsx

@@ -20,6 +20,7 @@ import PageHeader from "../../../components/PageHeader";
 import { builderEnvSelectors, builderSelectors } from "../../../selectors";
 import { BuilderAppState } from "../../../typings";
 import ConnectedBuilderPage from "../ConnectedBuilderPage";
+import styles from "./styles.module.css";
 
 interface Props extends DispatchProp {
   characterId: number | null;
@@ -243,6 +244,13 @@ class WhatsNext extends React.PureComponent<Props, State> {
             <div className="whats-next-action">{this.renderPdfButton()}</div>
           </div>
           {this.renderPdfData()}
+          {!isCharacterSheetReady && (
+            <p className={styles.returnToHomeText}>
+              If you are unable to create a character due to missing options,
+              return to the <strong>Home</strong> tab and change your source
+              settings.
+            </p>
+          )}
           <div className="whats-next-characters">
             <Link href={characterListingUrl}>View all my characters</Link>
           </div>