how can I solve this problem

Hi,

This is the theme requirements guide – https://forum.tagdiv.com/requirements-for-newspaper/
Please check the requirements guide carefully and if needed increase the parameters mentioned in it, or ask your hosting provider to do it for you if possible.

That message you are receiving could be caused by a low max upload size value, like in this similar topic
– https://wordpress.org/support/topic/the-link-you-followed-has-expired/

Hope this helps and let us know how it goes!

I’m here to assist you!

Thanks.