Hi,
Please share screen shot where you are facing the problem, website url, wp-admin and ftp info (login/ passwords) and send using “private reply” .

Thanks,

Hi,
Please tell me which demo you want to me import and Please check these php variables and try to make them have these values:
memory_limit = 256M
upload_max_size = 64M
post_max_size = 64M
upload_max_filesize = 64M
max_execution_time = 300
max_input_time = 1000

Tony,
I think your server has some restriction and cant access demo files (may be some firewall issue).

Do you have any other server?

Thanks,

Tony,
wp-admin > appearance > general > disable preload then
Try to edit and let me know.

Thanks,