Hello everyone!

I have been growing raspberries for the past 5 or so years. I have 9 or so different varieties all in a raised beds with partial to full sun. I live in north western South Carolina so I'm in zone 8a.

A couple of my raspberry plants seem to have something wrong with them, and I'm not entirely sure what. It looks like it's either insect damage of some sort or anthracnose, but I am hoping that someone here might be able to identify what it is. The canes and some stems have "dents" in them. The leaves are curled arround this area and one of the stems turned brown (see the picture with the red box).

I would be greatful if any of you could help me indentify what this is so I can get it taken care of (if possible).

Thanks so much!