I tried entering a specific lineup for week 2 to test the projections, and got the error 'could not find any teams under the salary cap, or you may not have enough players selected, or locked, etc'. I have only 9 players in my pool, and together they were only $47k

a) what is the minimum number of players I need to have in My Pool?
b) what is the maximum number of locks I can have at one time?
c) are there any other limits/minimums?