Email password not working after upload to live server

I just uploaded my pages to the live server and updated the database connection. Now I am having trouble with the email password function. (It's set up up with password encryption after the wa-solutionrecipe.) If I try to send a new password I get this error message:

Fatal error: Call to undefined function: wa_randompassword() in /pages/eb/46/d0006722/home/htdocs/A-SONICMAGIC/A_pages_E/users_EmailPW.php on line 9

What does this message mean? I don't even understand this path! It is in the beginning somehow mixed up with a part of the name of my database - other parts I just don't understand.

Could someone give me a hint where the problem may come from?
That would be great!

Strange is also that I can't realy access the Update Record (users) in the server behaviors panel of the users_emailPW-page. There I get a message "SQL type not recognized".

But the database settings must be correct because all other parts of the uploaded website are working well such as registration, Login, sending confirmation emails ...

Thanks for any help on this!
Henrik