The framework attempts to detect the entire URL by itself, so I'm
assuming the issue with the forward slashes is just a small glitch
that happens on shared accounts - we've seen it before but it should
be easy to fix.
The best way to help us debug any problems is to send a SQL dump of
the error_log table, if it was created at all and if it has anything
in it.
Regarding the installation process - the specific error you saw occurs
when the query to create a new account fails. That piece of the code
has been running just fine for quite some time, so it may be a problem
with the queries during the initial setup not creating the right
table. Hopefully, you're error log might reveal something.
If not, it would be helpful if you can turn on logging and send me the
log file that's generated. More information on that is here:
http://docs.aspen-framework.org/index.php/Aspen:System_Logs