What is the solution for curly leaves?

Perhaps the senior farmers are very experienced with several problems with plants, but what is happening may also be a question mark for me regarding the chili plants which are currently experiencing leaf curling and also turning yellow

This is something that often happens when planting chilies, and maybe there is a solution from friends in the same profession because in this case it is also a hope for me in dealing with plants like this.
I have come across many plants that have curled leaves, and there have also been many crop failures for the plants that were treated

I will continue to try to find a solution to the pest that has made the chili plants become like this, and hopefully this problem will be resolved and they can recover.

Thank You
@ayah-muda