The total time in the project list is different to the total in the timestamp list.

Open the configuration, point to System -> General and "Recalculate project times". Sometimes, for example on a computer crash, the timestamps in Xpert-Timer are not finished correctly and the total sum cannot be calculated any more. We try to catch every situation, but it can happen, that the total sum in the project list is different to the total sum in the timestamp list. Therefore always use the timestamp list for your calculations or hit the button "Recalculate project times" before.

Recalculate project times