Why I can't download App in Google Play Store

I can’t download it in Google Play Store because my cell do not compatible ( one plus 6, which released in the last year with the latest version ). What should I do? Thank you

Can you download other paid apps?

yes , but system tell me that this App is not compatible wit my one plus 6

One plus 6 one of the good phones. It should be compatible. Could you share screenshot where you get incompatibility msg.

A6000 is for Chinese and Indian market so there is no official Google Play store, it runs hydrogen OS. You might need to do more research maybe workaround a bit. I would recommend search Google for more answers.