Error Validating Client Secret

Need help Plugins
1

I have read various post on the forum regarding the same but the problem is still there with my app.

1

2
2807×532 15.7 KB
3
3871×550 18.2 KB
4
4830×538 17.2 KB
5
5920×549 25.3 KB

@NigelG
@fayewatson