Hello my co-farmers

How are you all doing today? I hope it's fine. I am very happy to write a post here in this community. Today I am writing about a pepper that grows on sharp sand and looking forward to seeking recommendations from you guys.

Talking about how this pepper grows here.
When my wife was cooking, she washed a bought pepper from the market and some of it started melting so was it and some of the seeds were left in the water, so she poured it out.
After some weeks the peppers germinated and started growing and at the beginning, it was doing fine, it started bearing flowers and I was so happy it would bear fruit.
But within some weeks the flowers were no more and the leaves of the pepper started becoming red and bearing only one small fruit.

In a situation like this, I need your guy's advice. What can I do about it to make the pepper start bearing fruit?
Please I need a quick recommendation.
Thanks, everyone for stopping by, hoping to hear from you.