See attached screenshot and log file entries below. Our number of log file Warnings has skyrocketed with this version.
[Sat May 11 09:15:21.730053 2019] [php7:warn] [pid 19644] [client 10.187.187.9:24198] PHP Warning: Invalid argument supplied for foreach() in /var/www/vhosts/staging18.gsu.edu/httpdocs/wp-content/plugins/types/vendor/toolset/types/embedded/classes/forms.php on line 281, referer: hidden link
[Sat May 11 09:15:21.738860 2019] [php7:warn] [pid 19644] [client 10.187.187.9:24198] PHP Warning: Invalid argument supplied for foreach() in /var/www/vhosts/staging18.gsu.edu/httpdocs/wp-content/plugins/types/vendor/toolset/types/embedded/classes/forms.php on line 281, referer: hidden link
[Sat May 11 09:17:15.011117 2019] [php7:warn] [pid 19638] [client 10.187.187.9:57917] PHP Warning: Invalid argument supplied for foreach() in /var/www/vhosts/staging18.gsu.edu/httpdocs/wp-content/plugins/types/vendor/toolset/types/embedded/classes/forms.php on line 281, referer: hidden link
[Sat May 11 09:17:15.019502 2019] [php7:warn] [pid 19638] [client 10.187.187.9:57917] PHP Warning: Invalid argument supplied for foreach() in /var/www/vhosts/staging18.gsu.edu/httpdocs/wp-content/plugins/types/vendor/toolset/types/embedded/classes/forms.php on line 281, referer: hidden link
[Sat May 11 09:26:15.266383 2019] [php7:warn] [pid 20026] [client 10.187.187.9:6244] PHP Warning: Invalid argument supplied for foreach() in /var/www/vhosts/staging18.gsu.edu/httpdocs/wp-content/plugins/types/vendor/toolset/types/embedded/classes/forms.php on line 281, referer: hidden link
[Sat May 11 09:26:15.275370 2019] [php7:warn] [pid 20026] [client 10.187.187.9:6244] PHP Warning: Invalid argument supplied for foreach() in /var/www/vhosts/staging18.gsu.edu/httpdocs/wp-content/plugins/types/vendor/toolset/types/embedded/classes/forms.php on line 281, referer: hidden link
Hello. Thank you for contacting the Toolset support.
Well - with the debug information you shared it shows me that you are using the WordPress Version 4.9.8 and in your initial reply you shared that you are using WordPress version 4.9.1.
Can you please update WordPress to it's latest version 5.2. Do you see such notices after WordPress update?
In addition to this, I see the notice is thrown from Types plugin but I would like to know when and exactly where? Can I have exact step information that will help me to reproduce this issue?
Sorry - I meant to put WordPress 4.9.8. Unfortunately we cannot upgrade to WordPress 5.2 at this time. There are accessibility issues with that version and we are not allowed upgrade until they are resolved. The error appears to be triggered by a post edit looking at the log entry.
Well - we do not get such report yet but to rule out any theme/plugin conflict:
Could you please try to resolve your issue by deactivating all third-party plugins as well as the default theme to check for any possible conflicts with any of the plugins or themes?