I'm having a problem while withdrawing BTCs.
Fatal error: Uncaught exception 'Exception' with message 'Request error: Array ( [c0de] => -4 [message] => Insufficient funds ) ' in /exchange/www/jsonRPCClient.php:145 Stack trace: #0 /exchange/www/account.php(94): jsonRPCClient->__call('sendtoaddress', Array) #1 /exchange/www/account.php(94): jsonRPCClient->sendtoaddress('1NN29fZtBeRVd7n...', 0.01114685) #2 {main} thrown in /exchange/www/jsonRPCClient.php on line 145'