Update app.py

app.py

@@ -48,7 +48,7 @@ def get_my_chain_rec(recipient_name=None):
     print(recipient_name)
     try:
         r = requests.get(f'{main_chain}{recipient_name}/{recipient_name}.json') 
-        mychain_rec = MyChainRec(chain_load=f'{main_chain}{recipient_name}/}',load=r.text)
+        mychain_rec = MyChainRec(chain_load=f'{main_chain}{recipient_name}/',load=r.text)
         response = {'chain': mychain_rec.chain,
                 'length': len(mychain_rec.chain)}
         message = f"Blockchain loaded from: {main_chain}{recipient_name}/{recipient_name}.json"