It's because I've used the "Zeto e Basileios" version, the one where Basil is the 867 emperor like in vanilla, if I'm not missing anything basically it can be reverted by copying the files from common/bookmarks and history/titles of the original mod, but that's going to break some titles in the new 10th century bookmarks, so I've made an updated version for Zeto e Besilisses too. There's also an extremely minor upgrade for Zeto e Basileios, I've noticed only now that base HIP is setting the revokation law in the history file, probably it's something that wasn't present back when this mod was done, so I've added it back to the mod.
EDIT: I forgot to resurrect Michael in the character's history file, decomment the added stuff about Basil and adjust some employers that were modified in the Basilisses version, now it should work fine, I've re-uploaded the file.