Cannot enter credit card number

I have completed my return and am ready to file.  However, my state return (Washington, DC) charges $25 to e-file.  I said I want to enter my credit card number, but the page that comes back is totally non-active.  Nothing I click on is active.  I tried several times and I cannot proceed.  I can only go backwards.  Any ideas?  It appears to be a Turbo Tax problem, but how do we solve it??  Thanks.