Oops, Guild Event Not Ready.....?

Today while attempting to get my guild reward I was unable to access the ‘check-in’ window. It’s never happened before and might just be a one time thing but thought I’d let you know just in case. It’s been 30 minutes, and I’ve attempted restarting the app and the phone.
I only recieve a window with the message:
“Oops, Guild Event Not Ready.”

P.S. Finally getting some 6 star equipment and I love it! Thanks!