helo pls im using the k2 component. k2 2.7.0 and when ever i open the comment section in the component i get an error message that reads...
JUser: :_load: Unable to load user with ID: 704.
it started to show this error after i have deleted some unwanted comments. pls how do i correct this please.

It appears you deleted a user with the ID 704.
You need to delete all their comments or if the user is the item's author, you need to assign a different author to the item.

please can you break it down for me and tell me the steps. im kinda confused with your last reply. thanks. and what did you say i did wrong.

You removed a registered user who had the ID 704 who had published K2 items and/or comments.

You need to see which are these items/comments and assign another author.