Update app.py

app.py

@@ -356,8 +356,23 @@ def issue_tokens(send,rec,amount):
                 mes = f"Sender has no wallet {e}"
                 pass
             if p==True:
-                balance = lod["chain"][-1]["balance"]
+                try:
+                    if lod["chain"][-1]["index"] > 1:
+                        balance = lod[-1]["balance"]
+                    if lod["chain"][-1]["index"] == 1:
+                        balance = 0
+                except Exception:
+                    p=False
+                    try:
+                        if lod["chain"][0]["index"] > 1:
+                            balance = lod[0]["balance"]
+                        if lod["chain"][0]["index"] == 1:
+                            balance = 0
+                        p=True
+                    except Exception:
+                        p=False
                 print (balance)
+                
                 balance_send =int(balance)-int(amount)
                 if balance_send >=0:
                     p=True
@@ -374,7 +389,7 @@ def issue_tokens(send,rec,amount):
                         p=False
                         try:
                             if lod_rec["chain"][0]["index"] > 1:
-                                balance = lod_rec[-1]["balance"]
+                                balance = lod_rec[0]["balance"]
                             if lod_rec["chain"][0]["index"] == 1:
                                 balance = 0
                             p=True