Update app.py

Corrected spelling mistake in line 135
"latter" > "later"

app.py

@@ -132,7 +132,7 @@ def start_tryon(person_img, garment_img, seed, randomize_seed):
                 result_img = cv2.cvtColor(result_img, cv2.COLOR_RGB2BGR)
                 info = "Success"
             else:
-                info = "Try again latter"
+                info = "Try again later"
         else:
             print(response.text)
             info = "URL error, pleace contact the admin"