Looks like the front side I the stripper guide. The stripper and tip...the two most important. If the rod is worth the money, have it repaired. If not, well...don't. Lol.
Doesn't look like it is in a place to really cause issues. The line isn't hitting it there often, if at all. But, I'd hate to have that be line and lose a fish it expensive lure because the line was cut by it.
RIP little Nitro