odintsaq

I got the same issue with my site.
The first occurrence was after Polylang’s 2.3.9 upgrade. I then go to “URL modifications” settings of Polylang and use the “Save Changes” button without changing anything.
This will solve the issue, but it seems temporarily.
I have had this happen again this weekend, which means it is not occurring with each Polylang update, as I had initially thought.
I will try to monitor the issue and make a daily sanity check of my page’s status. If I find some recurring pattern, I will let you know.

Cheers!
Thanasis

Here is the full error message. I hope it helps.

PHP Fatal error:  Uncaught ArgumentCountError: Too few arguments to function wordfence::wordfenceStartScheduledScan(), 0 passed in /.../class-wp-hook.php on line 298 and exactly 1 expected in /.../wordfenceClass.php:2607
Stack trace:
#0 /.../class-wp-hook.php(298): wordfence::wordfenceStartScheduledScan()
#1 /.../class-wp-hook.php(323): WP_Hook->apply_filters('', Array)
#2 /.../plugin.php(515): WP_Hook->do_action(Array)
#3 /.../wp-cron.php(117): do_action_ref_array('wordfence_start...', Array)
#4 {main}
thrown in /.../wordfenceClass.php on line 2607

After some tinkering around I found a solution to the issue:

Logout and then login. It seems to solve the problem in both cases.

So in case someone else has similar problems and they are not attributed to corrupt DB tables, try login off and on and see if the problem persist.

Hi @wfalaa,
Now it seems to be working OK. Thanks for the help!

I have the same problem as the OP, in both my sites.
Also I have 5.3.28 PHP installed

Sorry for the late reply.
Since it is not a big issue I believe I can wait for the release of the new version.
Thanks a lot.