Brown tips/crawling

Hi growers. First time growing.
Auto flower in organic living soil.
Soil Ph = 6.4.
32 Days old.
3 to 4 leaves (Older leaves) have brown tip. One tip curling up and on another leave clawing with browning on tips.
Nothing on new growth.
Gave compost tea 2 days ago.
Any advise?

Dilute the tea a bit more.