User resoucrce usage calculation algorithm for traffic is incorrect
calculate the used traffic per duration and on a 30 day's period.
For example :
My client buy subscription with (5Gb/month limit) 20th of May. And we that 5Gb limit will be till 20th of June, not till 31th of May.
plesk calculate the usage on the date base and will reset the usage statistics on the first day of each month. THIS IS INCORRECT
Please change this algorithm in future updates.