Hi, usually this happened due to the hosting-related issue, please make sure that php memory limit is at least 512 mb. Also, other important hosting metrics must be ok.
Here is example of good hosting:
Admin area URL: https://rambunctioussack.s1-tastewp.com/wp-admin
Username: wproyalthemes
Password: 7bVQiMReEbI
You can login and try to import any kit – it will work fine – please note this site will expire soon.
You need to contact your hosting and ask for help.
Kind Regards,
Nick
