When I try to perform Training, the message "Cannot perform Training" appears.

There is a limit to the number of trained players you can own, and you cannot register more than this limit.

To perform Training on a new Player, you need to "Transfer" trained players to free up space.

■Steps

[Team] > [Trained Players/Lineup] > [Trained Players List] > [Transfer]

Please note that the data of any trained player you Transfer will be deleted.

If this doesn't resolve the issue, please contact us here.