Scoring should start tomorrow then.
Alternatively you can change the date scoring starts retroactively to whenever you wanted the league to start scoring.
Go to: Commish Tools > Change Retroactive Date and set the date you wanted scoring to start from.
You probably want to get consensus from the other managers to do this. And if you do decide to do it, make sure to let all managers know that they will accumulate points for whatever lineup they have set when this setting kicks in, it usually works after a days play or overnight.
The easy way is just to forget about the days play you missed out on, because everyone's in the same boat.
Roto/12 team/9 cat
G: Curry, Thornton, Teague, Rubio, M. Brooks, Bayless
F: LeBron, Iguodala, T. Allen, Gooden
C: M. Gasol, T. Chandler, Jordan