[rt-users] Can't call method "LanguageHandle"

[Raed El-Hames]

Upgraded from 3.6.4 to 3.8.7

After the upgrade some of my users are getting the below message:
Can't call method "LanguageHandle" on unblessed reference at 
/opt/rt3/share/html/l line 49.

we only use english and have set
Set(@LexiconLanguages, qw(en));
in RT_SiteConfig but no luck ?? any ideas why we are getting this

Regards;
Roy