server administrator taking too much space

HI All ,

All of a sudden one of my sub-domains have started showing abnormal space usage for the administrator .

Virtualmin is installed on CentOS release 6.4 (Final).

The current status is as follows .

Home disk space used (including sub-servers) 447.54 MB (14.14 GB by server administrator, 0 bytes by mail / FTP users).

I have allocated 15 GB to the admin and it is getting consumed at the rate of 0.01 GB every hours . I am confused what is causing this issue .

Any suggestions is welcome .

Thanks Amit