[Solved] Two issues: Nonce is invalid and too many MySQL requests

Hi,

After updating from 7.1.1 to any newer version, I get a “Nonce is invalid” error when trying to post a comment. Guests how are not logged in get “Commenting is closed”.

Upon checking the console, it links this part in the code:

$('#wpd-comm-'+uniqueID+' > .wpd-comment-wrap .wpd-comment-right .wpd_editable_comment').hide();$('#wpd-comm-'+uniqueID+' > .wpd-comment-wrap .wpd-comment-last-edited').hide();}else{wpdiscuzAjaxObj.setCommentMessage(wpdiscuzAjaxObj[r.data],'error');}}else{console.log(r);}

I did try to clear all caches, JS cache, CDN cache, etc., didn’t solve the issue.

Also, a second bug: about once per day, my database server is brought down by WP Discuz because it creates too many requests, like this one:

DELETE FROM wp_wc_users_voted WHERE user_id = 23269

What could cause this?

Appreciate any tips to solve this, thanks! Unfortunately I cannot provide a URL to check this as this issue brings down my website or impedes on basic functions.