arekusandoro on "Help with WordPress Permalink 301 Redirect via .htaccess"

Hello,

I don't know why but my permalink move :
/%category%/%postname%/

to

/%year%/%monthnum%/%day%/%postname%/

and I have many many 404 in Google webmaster tools...

I know it's possible to have RedirectMatch 301...but i don't know how

this link https://yoast.com/wp-content/permalink-helper.php help me...but not with /%year%/%monthnum%/%day%/%postname%/

Can someone help me ?

Thanks