Hello ! In general I'm careful about pest diagnosis but your leaves seems to have irregular silver spots ( can also be bronze spots ) which is a sign of a thrips attack and a light burnt would have ceeate brown dry parts on the leaves. Take a look under your leaves and try to find bugs or eggs , if you have some then treat with Insecticidal soap or neem oil ( both to spray on the leaves). I hope it will help you 😁✌️🏼