No, herb won't work in the CannaCig. I would return that device if you can, it doesn't even work well for wax, only oils.
You should avoid any device that contains cotton filler where you put your medication, That is the #1 sign of a rebranded e-cig. Sheryl Shuman should be reason enough to avoid this product. She is more interested in selling RFMK stock than she is selling a quality product. CannaCig has pyramid scheme written all over it!