You are a relatively new seller.
Have you exceeded your 30 day quota of listings by number or by value?
Were you using Bulk Relist?
Have you tried using Sell Similar?
BTW, if you prefer to list in US dollars, watch that your relists are not defaulted to loonies.
You've been using auctions, but it looks as if you only get one bidder most of the time. What happens if you try listing with Fixed Price?
With Fixed Price /Good Til Cancelled? Do the listing automatically relist ? Do the auto relists prevent new listings?