If you've been away on time off for a few days, you probably now have several consecutive days with no logs. Here's how to solve it.
In Slack, enter your logs for any missing weekday in that range by saying the
log command followed by the date (e.g.:
log last thursday or
log Nov 13). Nikabot will then ask you to pick a start and end date from a list of all the days that are missing. Select your dates and the days in the range will be logged automatically.