Error: Resource not accessible by Integration

[Vishruth-S]

I added greetings to my repository, but I am getting the following error on pull requests submitted by new contributors.
Error: Resource not accessible by Integration

Here is my greetings.yml file

name: Greetings

on: [pull_request]

jobs:
  greeting:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/first-interaction@v1
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
        issue-message: ''
        pr-message: "Hi there :wave: Congratulations on sending your first Pull request here :sparkles:\n I hope that you have followed the contribution guidlines"

I tried searching for a solution to fix this but couldn't find one. So I am not sure if this is caused by something from my end or if this is some kind of a bug...

[obnoxxx]

same here.

[pllim]

You need pull_request_target for it to work. See https://securitylab.github.com/research/github-actions-preventing-pwn-requests

[garg3133]

Same thing is happening with me.