It has been a long time since I setup the web2py server and they are still running 2.4.6. I decided to refresh my memory and version up!
Then I'm failed.
See the forum below.
It sounds like the latest web2py 2.9.12 doesn't work with apache using wsgi.
I already posted a ticket here.
If your server configuration is something similar to me, I recommend wait until this ticket is fixed!