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Website hosted in Plesk is inaccessible or an operation on a website fails:
CONFIG_TEXT: 500 Internal Server Error
The following error may occur when the WordPress domain is not accessible:
CONFIG_TEXT: There has been a critical error on your website.
Learn more about debugging in WordPress.
The following error is shown in the website's log:
CONFIG_TEXT: PHP Fatal error: Allowed memory size of XXX bytes exhausted (tried to allocate XXX bytes) in C:\Inetpub\vhosts\example.com\httpdocs\wp-config.php on line 91
The website doesn't have enough memory allocated to be processed.
Go to Domains > example.com > PHP Settings and increase
memory_limitvalue according to the application requirements, using the instructions from the following article: How to change PHP memory_limit value via Plesk?
Note: the following shortcuts should be used for
memory_limitvalue: K (kilobytes), M (megabytes), and G (gigabytes). If "free -mh" command shows not enough RAM, contact your Cloud hosting provider to increase it