the map is gray and inaccessible and no Renpy error message
but finally I go trough setting map_locked = False
That's really strange.
The only way the map turns gray is if the variable "map_locked" is turned on. And this variable is not mentioned at all in the script after the school event where you are free to explore the city.
I'll check it again, but I suspect it might be some bug related to Renpy's "rollback" option.
I like tk8000's work, but man did it take him several months to add basically nothing to the game. It's so empty it's almost cringe. You can have sex with a prostitute and a few really short and small events with your room mate and the girl with the glasses. Everything else is locked or missing.
To be honest I haven't seen an update for solvalley either past 0.7, and it been months. His last update fixed a few ui bugs, added a few idle characters and another girl you can't do much with ...
You're not wrong. Since the 16th of June I can hardly work on my games. It's almost 31 days I don't have the privacy to sit on my own PC!
I made version 0.8.0 to 0.8.5 for Solvalley at this time, I added few scenes, but at least I was able to deliver something to the patrons.
The good news is from July 19th I'll finally be able to work again. For those who are curious, what happened is that at this time I had to babysit two small children of my family, and obviously making adult games with sex scene and bukkake is not something very appropriate to do with kids looking, lol.
EDIT: Solvalley is still my main project and from the 19th of this month until the 30th, I will devote all my time to the new update.