--- Comment #15 from Claudio <[hidden email]> ---
Jonathan, please discard comments 6, 11 and 13. From my point of view the
problem is not linked to plugin system.
I have two istallation of Koha in two differents servers. One has plugin system
enabled (which echoes EDS issue) and one has plugin system disabled. So I
disabled the plugin system in the first and could reproduce the same error in
Can't use string ("firstname") as a HASH ref while "strict refs" in use at
/usr/share/koha/lib/Koha/Object.pm line 69.