Could not update /home/sit/domains/site.ru/public_html/wp-config.php!

Good afternoon, in an effort actuate WP Super Cache 1.2 appears here is such mistake:

Attention! Could not update /home/sit/domains/site.ru/public_html/wp-config.php! WPCACHEHOME must be set in config file.

Attention! /home/sit/domains/site.ru/public_html/wp-content/advanced-cache.php does not exist or can not be обновлен in automatic mode.

1. If he already exists in file Your блога, delete him(it).
2. Change the right of the access to /home/sit/domains/site.ru/public_html/wp-content to possible was write given in automatic mode (the right must be: chmod 777 /home/sit/domains/site.ru/public_html/wp-content), check correctness of the givenned rights and update the page. This is a temporary condition, after renovation of the page of the right of the access it is necessary to return on former (with 777 on 755).
3. Reboot page, file /home/sit/domains/site.ru/public_html/wp-content/advanced-cache.php is updated itself

If this has not operated, make sure that file /home/sit/domains/site.ru/public_html/wp-content/advanced-cache.php does not exist:

1. Open the file /home/sit/domains/site.ru/public_html/wp-content/plugins/wp-super-cache/advanced-cache.php$wp_cache_file in text editor.
2. Change line CACHEHOME on /home/sit/domains/site.ru/public_html/wp-content/plugins/wp-super-cache/
3. Save the file and copy in /home/sit/domains/site.ru/public_html/wp-content/advanced-cache.php, then reboot the page.

Impossible continue… previously than repeat the attempt, correct the previous errors.

Like do all on points – no change.

Tried to add in wp-config.php line define(‘WPCACHEHOME’, true);
then mistakes line surface on hat.

Who with such faced, prompt please what solve a problem?

https://www.ads-software.com/extend/plugins/wp-super-cache/