Digital downloads add on

I get the following error when trying to use easy digital downloads? This error even happens with trying to use WordPress download manager?

Hey there

Please check your problem on the default WordPress theme and let me know what happens if you have the same problem on the default WordPress theme then this means you have a problem from plugin side, let me know results and come back with the website url

Noda checked the default theme and I’m still getting that error also the default theme layout looks better wish I could use that css

Hey there

Well, if you have an exactly the same problem on default WordPress theme then you should contact plugin developers because obviously, this is the problem caused by a plugin