You need to use the bus stop at the Academy's gateon Friday Evening to go to town during the weekend. You also need to wear casual clothes.
Thanks for the reply and help. I totally forgot that I need to manually "go to" weekend from the bus stop, I thought it was automatic like the first week.
When I click the yellow bus it says: Not implemented. It is friday evening and I have my normal cloth on.
Use the bus stop at the gate of the academy, not the parking lot.