(RADIATOR) radius process stopping

[Tichahleyi Mpofu]

Hie my radius process stops and gives the folloing message on console    Can't locate Digest/MD4.pm in @INC (@INC contains: . /usr/local/lib/perl5/5.6.1/sun4-solaris /usr/local/lib/perl5/5.6.1 /usr/local/lib/perl5/site_perl/5.6.1/sun4-solaris /usr/local/lib/perl5/site_perl/5.6.1 /usr/local/lib/perl5/site_perl .) at /usr/local/lib/perl5/site_perl/5.6.1/Radius/MSCHAP.pm line 14. BEGIN failed--compilation aborted at /usr/local/lib/perl5/site_perl/5.6.1/Radius/MSCHAP.pm line 14. Compilation failed in require at /usr/local/lib/perl5/site_perl/5.6.1/Radius/AuthGeneric.pm line 479. Regards Tich