Account Transfer Server (CWP -> CWP) : Error in API

I've CWP6 and created new Google Cloud Server CWP7. I'm tring to move new one using CWP -> CWP transfer.

1- CWP6 test says my configuration is :  "Connection successfully"
2- When I click transfer one account it says: "Transfer in progress ...!" see: http://prntscr.com/iro4pn

3- Waited for hours nothing happened. But in chrome network tab it says: Error, en el acceso al API (Translated it means : error in API)
see: http://prntscr.com/iro57f

4- I've given all in permissions remote server API  : http://prntscr.com/iro49j
http://prntscr.com/iro6aw

Thanks for best control panel software!

What do the logs indicate?

You can see it by File Manager -> CWP-> Log viewer

/var/log/cwp/account_transfer.log

2018-03-15 16:26:28 Verifying...!
2018-03-15 16:26:28 Initial process kobida
2018-03-15 17:13:25 Verifying...!
2018-03-15 17:13:25 Initial process kobida
2018-03-15 17:14:54 Verifying...!
2018-03-15 17:14:54 Initial process kobida
2018-03-15 17:15:35 Verifying...!
2018-03-15 17:15:35 Initial process kobida
2018-03-15 17:16:52 Verifying...!
2018-03-15 17:16:52 Initial process kobida
2018-03-15 17:21:57 Verifying...!
2018-03-15 17:21:57 Initial process kobida