Hey Rexo,
Much appreciate you taking the time to upload your save!
I had a look, and if you help Lyriel with the dishes, in the afterrnoon on the following days: ( 298, 301, 304, 305, 308, 311) that should untangle the quests and get both her and Cait in the library for "Sightseeing". Doing that should let you tackle the other quests!
If not, let me know and I'll look further in.
And yes! Your saves actually carry over automatically to the latest version so all you have to do is run the game and play!