Inside the xxx store before facing dylan, I am stuck. I can't ge

Yes it is due to having a survivor following you. Walk about 100 meters up the street hold left trigger and press right on the d pad then up on the d pad 'go here command' the go back to the store and it will allow you to enter. Hint use an electric prod if you have one this boss is very susceptible to electric damage and very resistant to fire damage such as the flaming crossbow if you just made one in the fireworks store. If not go make one after the boss up the road if you gold star it youll recieve 40,000 pp and 80,000 if you finish on a y+b combo. Goodluck! Ps if your bummed about giving up your follow don't be, there are 2 new followers available inside the xxx store.