Facebook Login Error - Solved - Blynk Community

I have a Blynk app that has been running without issue for months. Last night, when trying to log in via “Login with Facebook”, I received an error: “App Not Setup: This app is still in development mode, and you don’t have access to it. Switch to a registered test user or ask an app admin for permissions.” This error occurs when logging in from multiple devices. If I try and log in with username and password, I am told I must use Facebook. I have not changed anything about my project recent

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Facebook account failed login issue - Issues and Errors - Blynk Community

Login Error : there is an error in logging you into this application. please try again later. · Issue #633 · facebookarchive/react-native-fbsdk · GitHub

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Facebook login error, The operation couldn't be completed. (Com.facebook.sdk.core error 3.) · Issue #1378 · parse-community/Parse-SDK-iOS-OSX · GitHub

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