1) this one https://www.prestashop.com/forums/topic/884856-best-server-settings-for-prestashop-17-tested-in-production
2) Php version 7.2
3) https://www.prestashop.com/en/blog/php-ini-file ( upload_max_filesize=25M; you should pay attention to this)
also look your "information" What's the specification
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