2024-02-28 08:30 UTC:

We are aware that a Classic Hero managed to sneak into the Birthday Summon Gate.

Gormek got really excited about the 7-year Birthday Celebration, donned his epicurean costume, and snuck in with the catering staff. We’re investigating which gormless bouncer waved him in without an invite and will update this announcement when we know more. 

Update 2024-02-28 15:30 UTC:

We've decided to let Gormek stay at the party, since he brought so many snacks to share. To make up for crashing, he has promised to send out party favors once the celebration is over to everyone who received him from the birthday summon gate.