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This also happened to me, apparently you have to die once during the lesser dog fight in order to get the scene where reaper plays the trombone (You must choose something else other than diving for the bone for this one and later after that you can keep advancing normally)

Scroll down and to continue click on the soul

The password for the library, you can find it on another game

The password for the computer, you can only get it if you're on wingding's route

When you are at the part where you have to buy a pillow, choose to stay at home first, then you get the option to check up on Mr.scott, and you should get the option to go check in his apartment right before your run.

Try to first check up on mr.scott before buying the pillow

Maybe try to get all of the clues, get the pillow and avoid visiting Daisy for the second time?

After all its only necessary to visit Daisy one time, only to get the clue about doctor rose.

Also make sure you check up and visit before your run to mr.scott's apartment, and talk to Edward to be able to go to the next chapter.

Did you by any chance decided to take it slow with sans?

Get all the clues and make sure you go with Ralsei and Chara