Hi, Karen yes, it works well now. I don’t know what was wrong before.
Thank you for your time and help.
I also have another problem. I have raised it on the forum before but it remained un-replied so far. The problem may be not with the theme, however, you may know some solutions.
If proceed further with checkout, PayPal converts item name from Cyrillic symbols to Thai (you can see on the pic), and it looks awful.
I know why PayPal does that, it is because my PayPal account registered with Two Languages Thai because I use Thai bank and the address in Thailand attached to it and English by default.
At the moment, it is very troublesome to add one more language to PayPal. Easier to create one more account than that. So, the question is do you know a way to convert Cyrillic into Latin before check out? Thanks!