TBM6 in demo mode sometimes

I installed TBM 6 in Dropbox so that I can use it on my laptop when I'm away from home. However, sometimes when I open it, it says I have no license and won't let me save new jobs. When I click to verify the license, it shows that I do, in fact, have an activated license. How can I get it to recognize the activated license when it does this?

emoji