Shipper migration Service error: Generic error

I used Shipper to migrate this site from WPMU dev to my reseller hosting on Heart Internet. It has failed and not sure why. I know it’s Apache but when I migrated it from the old hsoting into WPMu dev that was all ok…
I’ve looked at the logs but I didn’t understand

It says

September 16, 2019 6:48 am – Migration cancelled
September 16, 2019 6:48 am – Service error: Generic error
September 16, 2019 6:48 am – Canceling remote migration failed
September 16, 2019 6:48 am – Attempting cancel on 7********1/m*****.co.uk migration
September 16, 2019 6:48 am – Attempting to cancel export migration
September 16, 2019 6:48 am – Cancel lock set, process shutting down

I just refresh the Sipper page but did not do any cancel.