There's no problem using a Brisa lamp to cure Akzentz. It cures fine as long as you are in for the full 2 minutes and as long as your bulbs are ok.
Did you use Surebond on the natural nail, followed by a layer of Optibond around the edges of the nail? (It can go all over but takes long to soak off, and I've found around the edge to be fine) Then use a base and gloss before building up your colour and finishing (& capping) with Base & Gloss.
Akzentz Options....especially the darker colour also does shrink a bit more than some other soak of gels, which isn't a problem as long as you make sure you cap each nail and flash cure it. For the really dark colours try cleansing your Base n Gloss after curing before colour application to minimise on shrinkage.
If you followed all these steps and its still peeled off then its your prep. Akzentz...well any soak off gel tbh, really doesn't like any oil or grease on the nail plate. you need to prep, cleanse and dehydrate the surface of the nail very well.
Also I find Akzentz works best with a clear margin of about 0.5mm away from the cuticle and sidewalls, as if it does touch those areas you will get lifting albeit that will be a few days down the line.