There are 2 settings to check. First, if you have Jetpack installed, be sure to turn it off here.
Jetpack/Settings/Traffic/Related posts
PS. Jetpack Sitemaps are also here.
Jetpack/Settings/Traffic/Sitemaps
Second, to turn off Related Posts at the bottom of blog posts in OceanWP, go to WordPress Customizer/Blog/Single Post
Elements Positioning/Related Posts
To turn off the time stamps on these posts add this in CSS/JStime.published {display:none}
