Unable to set up GitLab Oauth

[RaylynYu]

Hello,
I am quite new to all this and was wondering if someone could help me in setting up GitLab as an Authentication strategy. I have tried but have been getting this error:

I am wondering what step or info I am missing to make this work. Thanks!

System Info:
Cent OS 7
Wikijs Version 2.5.201
Node.js 14
PostgreSQL 13

This is what I’ve done:
In GitLab
Created a New Application for the wiki, which generated the Application ID and Secret.
Callback URL:
https://[My Wiki.js IP address]/login/[key or token number]/callback
(The URL was copy and pasted from the Configuration Reference in Wiki.js)

In Wiki.js
Added GitLab as a strategy in Authentication
Copy /pasted the Application Id and Secret in Strategy Configuration
Added the base url:
https:// [MyGitLab IP Address]

[fengerzh]

I tried, it works now.

[mckaygerhard]

still does not work.. what is the clear steps?