As posted in general, here's the update on this:

Fix has been pushed, all should be good now and everyone should be able to gift GK jerseys successfully.

Important note: GK jerseys that were sent yesterday across servers were not able to be returned to the sender/claimed by the recipient. Senders have been compensated for the token amount they spent on GK jerseys that they attempted to send. If you'd like to gift those jerseys again, they'll have to be re-purchased and sent.

Thanks for your patience while we sorted this out.

We've also pushed 8.8.1, which includes a fix for those who were unable to make changes to their club name/details. Please re-update to be able to make changes.