Investors & landlords

I am brand new here and I don't know where to post my question so I ask a similar question here:

I received my old company's 401k class settlement payment for the company's mishandling of its 401k funds.  I didn't know its potential tax consequence so I cashed the payment check.  When doing my Turbo Tax now I am told I should pay early withdrawal penalty.  I actually didn't withdraw anything.  It was a settlement that I now realize I should put back into my 401k.  

In Turbo Tax there are not many options that fit my situation.  What shall I do?

 

Thank you for any advice!