Hi friend ! If you are using plugin WP Super Cache and on settings pages show this message appears at the top of as follows :
PHP is compressing the data sent to the visitors of your site. Disabling
this is recommended as the plugin caches the compressed output once
instead of compressing the same page over and over again. Also see #21
in the Troubleshooting section. See this page for instructions on modifying your php.ini.
Now, We are fix error, you opent file wp-config.php in the directory and insert he following code :
Save file and every problem is solved, thank watch.