Update app.py

app.py

@@ -199,7 +199,7 @@ def save_pdb(outs, filename, LEN):
 
 @ray.remote(num_gpus=1, max_calls=1)
 def run_alphafold(sequences, num_recycles):
-    recycles = num_recycles
+    recycles = int(num_recycles)
     RUNNER, OPT = setup_af(sequences[0])
     plddts = []
     paes = []