Have u got the same problem like I do? One of the reason might be you don't have enough GAS to execute the transaction. If you don't have GAS for testnet you can request it here - Happy coding!

The website has been down several hours now. Also, people are reporting missing NEO tokens in their windows neo-gui wallets. Historical transaction IDs, associated Coins, and any earned NEOgas from staking

NEO (ANS) coins and Transaction IDs suddenly missing from neo-gui Windows wallet. I have the Windows neo-gui wallet installed and I have successfully sent NEO (antshares) coin to it from Bittrex. I received