Error in validating timesheet

Hey there, I seem to be getting an error when trying to validate a timesheet. Please see screenshot below. What can be the workaround for this? Was there something wrong with the inputs?

message is quite clear, do you have data for said date

Is it required to have a time entry for every single date in the set time period?

I was able to validate a timesheet before without having an entry for every date within the time period.

What could possibly be the cause for the prompt to require an input for for 2021-10-12?

Screenshot is the previously validated timesheet. Its a single date since its just inputting timesheet values before Axelor was being used