Time sheet show 70 hours. the time sheet report shows 100 hours for the employees. When we tried to reopen the time sheet and make changes to a few days, we were given an error "time sheet row cannot have multiple entries on 6/30/14".
The error message you have mentioned usually shows up when there are overlapping entries. However, you have not mentioned about any. If that is the case, then the issue may be due to a corrupt Timesheet, however I have no way confirming it from the above given details. You could try deleting and re-creating the Timesheet. (Make sure you make a note of all the entries before deleting the Timesheet, either manually or as a print out). If the issue persists, please contact Replicon Support.