Update app.py

app.py

@@ -162,7 +162,11 @@ def combine_wav(source_dir, stamp, lang):
 
 
 def mms_tts(Input_Text, lang_name="Burmese (mya)"):
-    lang_code = lang_codes[lang_name]
+    # lang_code = lang_codes[lang_name]
+    try:
+        lang_code = lang_codes[lang_name]
+    except KeyError:
+        lang_code = "mya"
 
     user_model = download(lang_code, "./data")
     tts = TTS(user_model)