Higher Bandwith Usage on Admin Level?

[altayevrim]

I was checking my usage statistics and I noticed 1.4TB of network activity, which is very unusual. Most of the time I use 100-500GB's. So I dug into the settings and etc and wondered about this.

Usage Statistics for eth0
5.21 GB
Received
 
4.67 GB
Transmitted

Also when I check the bandwith usage by user level (from List all Users menu) they don't even exceed 10 GB. So is this a bug or there is a compromise in my server and DDoS attack sourced from my server?

How DA calculates the results on Admin Level, I was thinking that It sums reseller usages which calculates users for reseller usages. But I am not quite sure about it.
Thanks

 

[altayevrim]

I think I found something.
It seems Deleted User Bandwidth of admin reseller shows 1.42TB and It simply shouldn't because I didn't delete anyone.

https://imgur.com/a/5Hrtss8