Thank you so much.
BUt I am having another problem.
I want to do a transaction to buy some token but some errors are appeared and can not do the transaction. Errors are like this.
"invalid argument 0: json: cannot unmarshal hex number with leading zero digits into Go struct field CallArgs.value of type *hexutil.Big"
"known transaction: 9731d4b69dc179effa3ffcb29ef06ee6dc782255cf87d00e1a07c1b5893a191e "
What can I do now?
Are you sending Eth or other token? How much Gas limit did you use?BUt I am having another problem.
I want to do a transaction to buy some token but some errors are appeared and can not do the transaction. Errors are like this.
"invalid argument 0: json: cannot unmarshal hex number with leading zero digits into Go struct field CallArgs.value of type *hexutil.Big"
"known transaction: 9731d4b69dc179effa3ffcb29ef06ee6dc782255cf87d00e1a07c1b5893a191e "
What can I do now?
There is a default 21000 Gas limit value in MEW, after you put the address and amount of token, click the text box for the Gas limit. Most of the times it automatically changes to the preferred amount for that transaction. Then proceed to Generate Transaction button.
I have some of the previous campaign assured to paid in the tokens as well including the bitcoin payment but I not sure I have got paid to my myetherwallet. I have not invested on ICO or received any tokens from anyone. So I am also newbie in this thing. So guys please share how to check. Other etherscan explorer not work fine.
First, check what tokens you should have received, then check your balance on MEW (if you don't know how, check this : Showing & Loading Tokens). If the token is not listed after checking, I think it's not yet a Default token on MEW and you need to add it to show/spend the balance (Guide on How to Add a Custom Token to MyEtherWallet). On the other hand, without doing all of that yet, you could check your ETH address on Etherscan.io (search your ETH address, then on the right Pane > Misc > Token Tracker, you'll immediately see if you have tokens) and Ethplorer.io (search your ETH address then you'll see token balances on the right pane as well). 
