Github provider Error 401 Bad credentials

[StefanIGit]

Hi,
today I wanted to update the firewall, form my new notebook.
So I checked out our project, set the hecloud token, did a terraform init and terraform plan which resulted in this

│ Error: Invalid provider configuration
│ 
│ Provider "registry.terraform.io/integrations/github" requires explicit configuration. Add a provider block to the root module and configure the provider's required arguments as
│ described in the provider documentation.
│ 
╵
╷
│ Error: Error
│ 
│   with provider["registry.terraform.io/integrations/github"],
│   on <empty> line 0:
│   (source code not available)
│ 
│ GET https://api.github.com/user: 401 Bad credentials []

We use Bitbucket btw, I tried downgrading the provider but I cannot find a working version.
I fixed this by creating a github token my with my private account and was able to successfully run
export GITHUB_TOKEN="your_github_token" terraform plan

Any ideas what am I doing wrong?