Constant error notification

I have the same Warning too:

AH01071: Got error ‘PHP message: PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘QUADS_Ad_Setup’ does not have a method ‘quadsUpgradeToNewDesign’ in /var/www/vhosts/wordpress/public_html/wp-includes/class-wp-hook.php on line 287′, referer: /wp-admin/plugins.php

We’re sorry to hear that,

Can you please let me know on which page does it occur exactly?

If you guys can share a screenshot, we can fix this faster.

It appears in the admin area. In the plugin section and the update section. It’s the only place where it appears. It appears after every plugin, WordPress or theme update. Also after new plugin install. Will send screenshot later.

we have found the solution to this, we will fix this in the next update.

I have the same problem. And by the way, my website isn’t working anymore because of that. I tried to open it in a new tab, new window, new browser, new computer… And always the blank screen. I even can’t access my Admin panel anymore – that’s to say, my website is completely broken. And of course, I can’t wait for the next update as you said above. What should I do in this case? Thank you.

Edit: profmatheus.com is my (now broken and not accessible) website.

• This reply was modified 4 years, 10 months ago by Matheus.

We are going to fix this issue in an update which should be released with in 24 hours.

We’re sorry for the inconvenience.

We have fixed this in 2.0.4 update