Thank you for the fast response.
I already uninstalled this plugin (and deletet the data) like that (wd-fb-feed > options > uninstall && deleted tables). After installing again, the same problem appears. Same on another wp-instance.
I solved the problem by installing an older version of the plugin. I saw, that the same react error appears by authenticating over oAuth on FB, but it works.
I did not test yet to update the plugin, but i will.
If you have any further suggestion, i will test it. I can give you login cardentials for a test-site if you like to test it by yourself.
thanks so far,
Harry
