Update app.py

app.py

@@ -32,7 +32,8 @@ def translate(input, output, text):
     response = requests.request("POST", API_URL,  json=json_) 
     output = response.json()[0]['generated_text']
     output = output.replace(instruction, '', 1)
-    return output[output.find(f'Translation in {output}')+len(f'Translation in {output}'):].split('<end>')[0]
+    search_char = output.find(f'Translation in {output}')
+    return output[(search_char+len(f'Translation in {output}') if search_char != -1 else 0):].split('<end>')[0]
 
 demo = gr.Blocks()