Hi,
First of all, I’m really sorry have taken long time to reply you due to the weekend.
1. I can’t find caption in the slider
2. Go to Theme Options -> Header Builder https://prnt.sc/qzz1p2
Go to Theme Options -> Header Builder -> Mobile Menu https://prnt.sc/qzz22m
3. Go to Static Blocks https://prnt.sc/qzz43b
Regards,
Hung PD