There are other minimum roster requirements that must be met

Depending on your league rules, you may run into a issue when attempting to draft a player, where you receive a message that says something to the likes of:

There are other minimum roster requirements that must be met

It will appear with a pop-up that looks something like this:

This is caused by your league roster requirements (expected minimum and maximum at each position / along with roster size and how many picks you have remaining).

If you believe this to be a mistake, then the Commissioner needs to review the league's "Roster Postion" setup, located in the SETTINGS area.

There is likely an mistake in the Minimum and Maximum set in that area, or an incorrect value set for the ROSTER SIZE.