Hi all, I've inststalled the construct demo and have made some changes to it. Everything seems to be OK. But when I try to order something I get an internal server error. This is in the error.log file: Runtime error: Can't call method "open_table" on an undefined value at /usr/local/interchange/lib/Vend/Data.pm in line 799. What does this error mean and what do I have to do to make it work? T.i.a. Walter