Warning: Incorrect cache engine

I keep receiving this error after i empty page cache:

Warning: Incorrect cache engine in /home/manlynux/public_html/mywebsite.com/wp-content/plugins/w3-total-cache/lib/W3/Cache.php on line 76

And this one appears after i add a new post:

Warning: Incorrect cache engine in /home/manlynux/public_html/mywebsite.com/wp-content/plugins/w3-total-cache/lib/W3/Cache.php on line 76

Warning: Cannot modify header information – headers already sent by (output started at /home/manlynux/public_html/mywebsite.com/wp-content/plugins/w3-total-cache/lib/W3/Cache.php:76) in /home/manlynux/public_html/mywebsite.com/wp-includes/pluggable.php on line 876

If i deactivate w3 total cache plugin, the error disappears.

What is happening?

https://www.ads-software.com/extend/plugins/w3-total-cache/