Help, It says error, like its not found

When I search up Dungeon ni Deai o Motomeru no wa Machigatteiru Darō ka it doesnt show up it says error, but when i search up its other name which is Is it wrong to try and pick up girls on a dungeon its there, but the problem is that, those 2 titles are the same series but has different stories on fanfic like if I search up the former thats where most of my saved fave fics are but on the latter it just have different stories, please help