Well, not really, I also try to access with an admin user, going to the course section (where you can delete, edit, etc., the courses) and I can only access the new courses. When I access the old ones, it crashes. I am accesing all the server with an URL with the IP of the server.
I have also tried with aolserver 4.5.1 (no compiling errors) but the problem continues. And also when it is hanging I check the postgres database if there is some kind of extrange query running, but nothing is happening.