Box to One drive migration

I keep getting errors to connecting using the via the Microsoft 365 migration, however I get emails to say that the migration has been connected.

I have a basic account please advise if I need to upgrade the account or there is something that is needed to enable this.

I have been following the instructions below.

https://learn.microsoft.com/en-us/sharepointmigration/mm-box-step1-connect