Blank Invitations Missing

Hi there!

So I'm freaking out a bit... my Eternal Bonding ceremony is tonight and I come to find that my blank invitations are missing from my inventory and aren't in my retainer. I really don't have a clue what happened, but is there any way to get it back? From what it sounds like I won't be able to go through with the ceremony if I don't have it.

As a note, I did receive it originally and I have used it to make ceremony invites for people. My partner still has his blank invite and everyone I've given it too still says it has the correct information displayed for them.

Thanks!

Any ideas? Four hours until the ceremony :(