Talk:Summer 2016 Event/@comment-29617683-20160813130527/@comment-25174240-20160813132246

It says that you've not met one of the conditions for sortieing in the event.

Don't forget the standard (for every single event) requirements that all players are expected to know by heart:

Referencing: http://kancolle.wikia.com/wiki/Events

In order to sortie to the event maps, players must fulfill the following requirements:
 * Must have a 75% sortie win ratio
 * Must have 5 empty ship slots for new ships
 * Must have 20 free equipment slots