reset likes for posts and site wide?

Hello @rembem
I will add this option on “wp ulike 2.2”. But for now, try this code to clean all likes:
<?php delete_post_meta_by_key( '_liked' ); ?>

Thanks Alamir, this works.

However I also had to empty the wp_ulike table, to reset statistics, and to prevent the counting go wrong when logged in.

For others, here’s how to empty the table with phpadmin:
https://codex.www.ads-software.com/Emptying_a_Database_Table