Indeed, it appears that the gradient calculator gives an invalid output, as all the errors refer to a similar structured CSS.
It of course needs fixing, it didn't occur to me, as my IE console was supressing CSS related errors for some magical reason. While I don't like using IE, their developer console is one of the most informative of all browsers due to it's sensitivity.
If you don't mind, I'm not going to touch anything on your server for this issue. I'm almost finished with the next update, I will take care of this issue as well before release.Best,
If you like my products, don't forget to rate them on codecanyon :)