Need urgent help. Why this hidden link notices are showing into post meeting edit page because of hidden link condition settings. Before there was no error for setting conditional display. If I remove the conditions then the notices are not showing. Why behaving like this?
The developers have produced a fix, and plugin updates are due soon, likely early next week.
If you subscribe to the comments on that linked erratum it will be updated as soon as the updates are available.
In the meantime it looks like you have debugging turned on for your production site. You may want to have debugging turned on, where it sends error messages and warnings to a log file, but you surely do not want such messages displayed on screen.
Edit your wp-config.php file and either set WP_DEBUG to false or leave debugging on but set it to write messages to the debug.log file, like so:
If you haven't already, turn on the debug log by editing your wp-config.php file and change the line with WP_DEBUG like so: