Fix error handling for AfricanVoices until Flite installation can be resolved.

app.py

@@ -66,7 +66,10 @@ type=['wav'])
                 finetuned_mms4 = synth_mms(tts_text, "khof312/mms-tts-spa-female")
             if tts_lang=="lin":
                 finetuned_mms1 = synth_mms(tts_text, "khof312/mms-tts-lin-female")
-                finetuned_africanvoices = synth_africanvoices(tts_text, models[tts_lang]['africanvoices'])
+                try:
+                    finetuned_africanvoices = synth_africanvoices(tts_text, models[tts_lang]['africanvoices'])
+                except:
+                    pass
             
             #vc_mms
             #vc_coqui
@@ -166,12 +169,14 @@ type=['wav'])
                 row2[0].write(f"Meta MMS")
                 row2[1].write("[khof312 - female](https://huggingface.co/khof312/mms-tts-lin-female)") 
                 row2[2].audio(finetuned_mms1[0], sample_rate = finetuned_mms1[1]) 
-
+    
+                try:
+                    row3[0].write(f"African voices")
+                    row3[1].write("[African Voices]()") 
+                    row3[2].audio(finetuned_africanvoices[0], sample_rate = finetuned_africanvoices[1]) 
+                except:
+                    pass
             
-                row3[0].write(f"African voices")
-                row3[1].write("[African Voices]()") 
-                row3[2].audio(finetuned_africanvoices[0], sample_rate = finetuned_africanvoices[1]) 
-        
             st.divider()
                         
             "## Voice conversion" #################################################################