After Class

Any help with unlocking Lars 2nd picture in the gallery? I'm following the guide precisely (https://docs.google.com/spreadsheets/d/1opecc1Wkh4iUxIYTlF0c5NtbbmmQ_30fIH2b5JXbqUQ/edit?gid=1940240321#gid=1940240321) but I always end up with the 2nd image locked. I guess it might be a shower scene? Where the MC suggests it but they end up not doing it around day 9? Is there a different/updated guide or something? I mean I unlocked the other pictues but this one stays locked, I feel like I'm choosing wrong dialogues or something? Help please

Is the guide still available?

QUESTION
!!!SPOILER WARNING!!!
For Coach Gil's route, on day 11 
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                   Context:   For the 2nd time I (mc) got a call from a private number (the first time after leaving our house in a hurry and after bumping into a character, which for me was Mr. Parker), I got a call that said something like "D... not.... c..me....." then after some silence from whoever was on the other end, that called ended and I got another call which was from Samuel.

                     Question:   I don't think it was Coach Gil, since at the end of that day, he came back safe and sound; so who was it that called me and told me not to come?
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