[exim] Failed to expand ACL string

Hi, all.

My exim started to show this error since this morning update.

Any hint on how to solve this is appreciated.

F=<> rejected by non-SMTP ACL: failed to expand ACL string "${if
eq{$originator_uid}{${perl{user2uid}{nobody}}}{1}{0}}":
Undefined subroutine &main::user2uid called.


Best Regards,

Sergio