AD group converted to SID hitting on VAS fatal error

Hi,

Here is my AD group converted to ObjectSid in .htacces:

AuthType VASRequire group S-1-4-65-1004XXX348-13XXXX898-XXXX001333-XXXX89

I am in this group but getting denied access with following error:

[Fri Apr 20 11:15:53 2012] [error] [client 172.30.XXX.X] match_group: fatal vas error: No error message available, referer: http://mantis.example.com/auth/

I have to resolve this issue, ASAP .. please help