If you have missed a day of logging your skips, you can add them to the total you are going to add next time.
Ensure that you are logged into your page, once logged in you will see a red rectangle at the top of the page that has your name, photo & school information listed. In that rectangle, you will see the skipping heart on top of the white box that says 'log skips'. Click on 'Log Skips', you can then enter in how long you skipped.
You can add skips in seconds, minutes or hours. Once you enter your skips click 'log skips' & your skips will then be added to your page for that day that you are logging them.