add guard and fix test

src/routes/planviewer/Planviewer.test.tsx

@@ -258,9 +258,11 @@ describe("Planviewer", () => {
   test("renders verse of the day and public series", async () => {
     renderPlanviewer();
 
-    expect(await screen.findByText("Verse of the day")).toBeInTheDocument();
     expect(
-      await screen.findByText("All conditioned things are impermanent."),
+      await screen.findByLabelText("Verse of the day"),
+    ).toBeInTheDocument();
+    expect(
+      await screen.findByText(/All conditioned things are impermanent\./),
     ).toBeInTheDocument();
     expect(
       await screen.findByText("200-Day Road to the ITCC 2026"),

src/utils/helperFunctions.test.tsx

@@ -45,6 +45,11 @@ describe("getLanguageClass", () => {
     expect(getLanguageClass("")).toBe("en-serif-text");
     expect(getLanguageClass("fr")).toBe("en-serif-text");
   });
+
+  test("defaults to 'en-serif-text' for missing language", () => {
+    expect(getLanguageClass()).toBe("en-serif-text");
+    expect(getLanguageClass(null)).toBe("en-serif-text");
+  });
 });
 
 describe("isEmail", () => {

src/utils/helperFunctions.tsx

@@ -84,7 +84,8 @@ export const mapLanguageCode = (languageCode: string): string => {
     languageMap[languageCode as keyof typeof languageMap] || languageMap.en
   );
 };
-export const getLanguageClass = (language: string): string => {
+export const getLanguageClass = (language?: string | null): string => {
+  if (!language) return "en-serif-text";
   if (language === "en-san") return "en-text";
 
   const upper = language.trim().toUpperCase();