'phpbb.book_config' doesn't exist

Hi there!

I have a problem with the Advanced Guestbook 2.4

I installed it as the readme told me to do and now I get an error, when viewing the guestbok that says:

That is really strange, because the table should be phpbb_book_config!

So somewhere in the script there must be an error, where a . (dot) is confounded with a _ (underline)!

Has anyone an idea where this error in the code is?
Or if it is something else, has anyone an idea what exactly???

fladd