I was getting this error too, and I called as I have as many as 50 not working.   No luck in calling they made excuses and said they hope to have it fixed for next year if you can believe it.  And their help tip only works if you do not have a separate password for the return itself and it will then not allow you to get it to go.  Plus the tip to fax Lacerte to get them unlocked has no fax number!  Great start to tax season.