Stitched unlimited Not working

[canadianhouses.ca]

My stitcher unlimited unexpecitedly stopped working, I have been using it for 2 years. Any idea how to get it up and running again?!? I need help asap as I have projects to finish. 

[mikecogliandro]

My Stitcher 5.7.1 quit saving.

I was working on three panoramas, when during the third pano, a window popped up stating that my trial will expire in ten minutes. Since I purchased a license around 2008-2009, I ignored the pop-up. Sticher would not save my 3rd panorama, but it did output with 3 watermarks obsuring the pano.

Emailing Autodesk and reaching Celine Manca, she directed me to a website, BlueSnap, which proclaimed in bold letters, "Access Denied : The requested page is not publically available"".

So here I am with several panoramas to stitch and more looming in the next few days and I have not gotten a satisfactory solution to my problem.