If you were to go to my site and check, you would see that your advice is not written correctly for me, I have a dedicated server for site with custom configuration. Look carefully again at the limits and finally go to my website login details I gived you.

PHP max input variables 10000
PHP time limit 300
PHP memory limit 512M
Max input time 300
Upload max filesize 512M
PHP post max size 512M

WP_MEMORY_LIMIT 256M
WP_MAX_MEMORY_LIMIT 512M