No idea, I don't play on mobile. As a general rule, try different versions of joiplay and different versions of the game, the functional difference between 0.9.8 and 0.9.6 or 0.9.4 is minimal and even going down to 0.8.x you'd still get 95% of content vs the latest version. There doesn't seem to be a Joiplay guide on miraheze wiki, there is one on vk in russian (
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) if you take your time to MTL it here might be some solutions.
One detail to add, Lona needs to have Prostitution trait when rescuing Cocona and in the dialogue following the priest scene say what he took could have been "traded for precious things".