Why can't I send cryptocurrency?

Transactions may fail due to different reasons. 

To better assist you, please provide the following information to [email protected]

• To & From addresses?
• Coin type, amount, and time of the transaction?
• Any error messages on either the App or Wallet?
• The brand, model of your mobile device, and its Android / iOS version?
• Is your App & CoolWallet updated to the newest version? If not, please have them updated.