Hi There,
Were you able to get a solution to this problem? I’m faced with exactly a similar issue.
We’re having exactly the same problem:
https://www.dropbox.com/s/92gjfaz8i4ry6k0/Screenshot%202016-10-12%2011.56.44.png?dl=0
I noticed that it works fine if you have never had an older version of the plugin and you did a fresh install. If you updated from 2.X it throws these errors now.
Hi there
I’m having the same problem. Can someone please advice. Many Thanks 🙂
Yes the support took a look at the site and couldn’t solve it. I even took the site on staging deleted all plugins except Ninja Forms and used a standard theme. Same issue. After I looked in the database I noticed Ninja forms stores some data that doesn’t get deleted even if you select Force Uninstall in the settings.
The solution was to switch to Gravity forms.
Thanks Lucian. I feared that maybe the case. Think I’ll go back to Contact 7, but will take a look at Gravity Forms – hear they’re popular right now 🙂
Ninja Forms 3 is not yet ready for prime time. I did a new CentOs 7,apache, mariadb, and php installation. Created virtual hosts, installed WordPress and only Ninja Forms as a plugin. Same problem. How do you explain that? I’m also moving to Gravity Forms. Good thing my site is still under development
Was it a new installation of Ninja forms? Weird it’s supposed to happen when you upgrade from the 2.X. I tried it on a another site and it seemed to work there.
Yes it was the latest version. Maybe there was a conflict with the theme I’m using.
I think I have found the cause of the on my side. I use ssl on all sites I build. I tested with a plain non ssl WordPress installation and everything worked as expected. I then created an https WordPress installation, problem back again. I don’t know if Ninja Forms cannot handle self signed certs or something else
I think you are right! I’ve tested on 2 sites using ssl hostgator and wpengine that’s using Let’s Encrypt certificate and both have the same issue. When I tested without SSL it worked.
