Getting is issue on my website

Hello,

I me receiving this error on my website when I activate the plugin. I contacted my hosting provider and they said the issue is not with he memory on their end, to contact the developer.

I switched to the WordPress default theme and deactivated each plugin, but that did not fix it.

Below is the error message.

Fatal error: Allowed memory size of 805306368 bytes exhausted (tried to allocate 20480 bytes) in?/home/customer/www/mywebsite.com/public_html/wp-includes/meta.php?on line?1189

There has been a critical error on this website. Please check your site admin email inbox for instructions.

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