I’m new to the program; however, I seem to be stuck. I can’t progress any further. Today and yesterday, when I tried to study, I got these messages below. I’ve done all the reviews and understand lesson one, but can’t progress. Any suggestions? Dashboard also shows no progress for radicals, Kanji, or vocabulary.
Today’s Lessons Done! All done.
Do your Reviews to unlock more Lessons.
Reviews 0
There are no more Reviews to do right now.
This is a SRS model which means spaced repetitions. Basically, the frequency at which you will see words you’ve learned in review will lessen as you get them correct. Eventually you will go days and weeks before seeing that word again which really cements it in your memory.
By default you should have 15 new words a day. So after 2 weeks you’ll have 210 words in your rotation. The more words you learn, the more difficult it will be to remember them, and when you get them wrong, they become more frequent. This will cause reviews to pile up quickly!
The first couple of weeks are slow, but by level 3 you’ll have like 60+ reviews a day. I’m almost through level 5 and have over 100 a day with over 700 items learned. I’m still at the beginning myself and judging by my experience with the Anki SRS (highly recommend), things will get borderline overwhelming. Enjoy the slow period while you can 
You need to learn about the SRS.