Forms won't scan-lighting/focus issues?

I've never experienced any issues scanning forms before (been using gradecam for 2+ years), but as of yesterday, none of my forms will scan.  Gradecam says it is having difficulty scanning and I should check the lighting, focus and zoom...  I have tried every kind of lighting, etc. and it all looks fine and the same as before when forms were scanning.  I have also tried using the app on my phone and experienced the same issue.  Help!  Thinking the problem must be on your end--what has happened?  


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