For the store: You'll need to meet Sarah two times. Follow Pamela's path to do this. You'll need to progress Elsa's questline a bit up till the cafeteria. the store opens after day 40.
The boss arrives day 68+, after you sleep. As long as all journal character tasks are something like "wait until the boss arrives".
You're missing some events in your journal: Are you stuck somewhere? Visit a bunch of other girls.
You're missing some events in your journal: Are you stuck somewhere? Visit a bunch of other girls. Try talking to Emily in her room or something .
As a last resort, you can send me your save file and I'll find what's missing. In general, I solve all the issues within a minute and it always comes down to a player missing a certain event. In any case, for the next version, I'll make things simpler and improve the journal.
