You need to raise friendship with Android or Lin?
If you feel stuck is because there might be an event on a specific day of the week on a specific time of the day(Morning,Noon,Evening) and moving towards that location will trigger the even this also includes your room(there are many like that) try moving to different places during those 3 times and see if it triggers an event.
well i have try that for 4 week
will keep going but in my previous attemp i have keep going for 60 day whithout progress
have finish moon quest line
every content added to main charachter's/resident
have every elf (and every event avaible bloked at the high elf event cause need to up fs with lin, witch is blocked cause of the human kit thing)
if you saw the Android with black hair(Human Kit) and you still have that message popping up then you do have a bug, since Black Hair Android scene goes first than all the scenes you have just mentioned.
You can buy the human kit after she gets rejected from a Restaurant because she is an Android(Sex Doll), after that you can give her the Human Kit and then the scene of them going back to the restaurant begins.