How to remove duplicate entry of vbseo_likes
 

Hello,

In my forums - vb v4.2.1 with vbseo and it has vbseo likes enabled in it.

Noticed that for a particular post, has received likes from the same member twice and it shows like -

UserX and UserX like this.
When I went and checked the table - vbseo_likes with conditional to show the likes for this particular post id, it showed the same details of from user id and destination user id same and duplicated. But I tried to remove the duplicate entry in the table but the table has the message

This table does not contain a unique column. Grid edit, checkbox, Edit, Copy and Delete features are not available.

and does not allow me to do so? How to fix this? Thanks in advance.