Send action is returning balance 0

[diegomr86]

When I click "Send Funds" button the modal closes and nothing more change.
Debugging i found this error when converting from address :
Error file: /node_modules/mastercoin-tools/msc_utils_obelisk.py line: 245
Error: timeout: "failed to run command \xe2\x80\x98sx\xe2\x80\x99: No such file or directory"
Function error:

def get_addr_from_key(key): # private or public key
out, err = run_command(TIMEOUT+"sx addr ", key)
return out.strip('\n')

This can be a enviroment installation error or a bug?