its work for me now after i did this two steps ( step 3 is unnecessary) :
i lost the last month 10k videos page and just before two days i did the two steps and today i see that i have get back my 10k videos indexed :) 🔥
1) In ./htaccess file in your www root directory (can be edited via FTP or server File Manager) locate these 2 lines going together:
RewriteRule ^videos/([0-9]+)/([^/]+)/$ view_video.php?id=$1&dir=$2 [L,QSA]
RewriteRule ^videos/([^/]+)/$ view_video.php?dir=$1 [L,QSA]
and change ^videos/ to ^video/ in URL pattern (beginning of the line):
RewriteRule ^video/([0-9]+)/([^/]+)/$ view_video.php?id=$1&dir=$2 [L,QSA]
RewriteRule ^video/([^/]+)/$ view_video.php?dir=$1 [L,QSA]
If you don't have these lines, likely your theme is customized to use some other video page URLs, this guide provides only information about default KVS theme URL pattern.
Also in the upper section of this same file named "# seo redirect rules" add these lines to redirect old video URLs to new:
RewriteRule ^videos/([0-9]+)/([^/]+)/$ /video/$1/$2/ [R=301,L,QSA]
RewriteRule ^videos/([^/]+)/$ /video/$1/ [R=301,L,QSA]
2) In KVS admin panel go to Settings -> Website settings and modify Video page URL pattern to "video" instead of "videos". Now all your video pages should be using the new URL pattern.