I maybe wrong, English is not my first language, but I stumbled upon a couple of typos. Overall you guys did a very professional job with spell checking
Upon rereading the entire dialog box in the image, I think you're absolutely correct. Not a typo as claimed.
For 9, leave Bikini (walking) and go east. The Red Plessy is in the middle of the woods. For 10, There is no NPC, it's a random encounter in the sea below the volcano.
Private residence is the house next to the docks. There are two people inside talking about the sea monster. You have to go through it to talk to the Purrsian on the balcony. The plessy quest starts when you talk to a little boy in the middle of the town.
I loaded up your save and I have no idea why the quest isn't starting. The boy is saying something about wondering if someone is well, and the other quest guy is complaining about the monster but not giving you the option to fight it. I don't remember when I did the plessy quest, but the Hubba Blubba was available as soon as I entered Bikini Bay for the very first time in the game. Plessy wasn't available (at least I didn't check) until after I already had fixed Gladion.
The guy in the private residence won't advance the quest until the player removes the heart fragment from him, and the option to remove his heart fragment doesn't appear if the player doesn't have space in their heart locket for his particular fragment. (I can't remember which piece he has.)
