Problem using rFunc UDF functions

Hi folks

I installed some rFunc UDF functions in my server databases (about 500 db's) with no problem. The new functions was running fine. But we decided to change the server to another temporally, in order to reinstall everything in the main server.

Now in the temporal server I installed Firebird 2.0.3, as I installed in the main server.. and I copied all 500 db's to the temp server. Then I open here any database and I can see the rFunc UDF functions normally with no problem, everything seems to be normal. But when I try to use any rFunc function (for example, STRPOS), the manager returns the following error:

Invalid token.
Invalid request BLR at offset 36.
Function STRPOS is not defined.
Module name or entrypoint could not be found.

Why this happens?. Maybe I have to modify the firebird.conf file in any way?

Thanks in advance

Ok problem solved just copying all rfunc .sql files into \Program files\Firebird_x_x\UDF folder. Weird, because in the main server was no needed to do this, and neither in my local machine, which is running Firebird with rFunc with no problem.