We purchased 6 chili plants of different varieties and one now has no leaves and dead ends, two others produce nice chilis, but the leaves are yellow and dying with no new growth. Another plant's chilis are wilted and shrivelled up.
Wilting Chili Plants
Certified GKH Gardening Expert
They may have wilt. Peppers and tomatoes are susceptible to the same diseases and wilt is commonly talked about with tomatoes, but can happen to peppers. This article will have more information: