Could not connect to server

Check for correct date on Payment System server and also on Payment machine. (Network connection is strongly encrypted SSL connection with certificate verification. Verification will fail if devices has older date then creation time of certificates.) There is possibility to reset system date of Payment Machine in it's service menu.

Access denied

When user is not able to access recharging screen on Payment machine due to Access denied error, it can be caused by using currency in Payment System which is not supported by Payment machine.