My other website can be logged in like this. Now this site jumps differently. I still reinstalled WordPress and the theme. The problem is this.
URL banned: The jump failed because the jump URI was not added to the OAuth client authorization settings whitelist. Make sure that the OAuth authorization login for the client and web pages is turned on and add all application domains as valid OAuth jump URIs.
The error says that you didn’t put your account URL to the redirect URL in your Facebook Login settings in your Application. Be sure to have the URL in the following format YOUR_ACCOUNT_URL/facebook/int_callback.
You need to replace YOUR_ACCOUNT_URL with your real account page URL. For example on our demo website it is https://woodmart.xtemos.com/my-account/facebook/int_callback