Update mychain.py

mychain.py

@@ -512,7 +512,7 @@ class MyChainTrans:
         if chain_r=="" or chain_r==None:
             chain_r=f"{main_chain_trans.split('datasets/',1)[1].split('/raw',1)[0]}"
         if chain_n !="" and chain_n !=None:
-            chain_n = f"{main_chain_trans.split('main/',1)[1]}{chain_t}.json"
+            chain_n = f"{main_chain_trans.split('main/',1)[1]}{chain_t}"
         if chain_n=="" or chain_n==None:
             chain_n="error_send.json"
         #prev_block = len(blockchain.chain)-1