I installed all the required and recommended plugins including child theme. Still the demo import failed. I tried at least 5 times after clearing all the database and installation.
I increased all the minimum values to
max_execution_time 900
memory_limit 512M
post_max_size 128M
upload_max_filesize 1G
Could you please urgently check this issue?
I have added the site url, username and password in the private content section