@Louis_Frolio after updating the key we are getting different error:

java.io.IOException: Error accessing gs://gcp-storage/FlatFiles/test_data.csv
---------------------------------------------------------------------------
Py4JJavaError                             Traceback (most recent call last)
File <command-5419098352410353>, line 4
      1 df = spark.read.format("csv") \
      2     .option("header", "true") \
      3     .option("inferSchema", "true") \
----> 4     .load('gs://gcp-storage/FlatFiles/test_data.csv')
      6 df.show()
 
 
Py4JJavaError: An error occurred while calling o407.load.
: java.io.IOException: Error accessing gs://gcp-storage/FlatFiles/test_data.csv
at shaded.databricks.com.google.cloud.hadoop.gcsio.GoogleCloudStorageImpl.getObject(GoogleCloudStorageImpl.java:2140)
Caused by: shaded.databricks.com.google.api.client.auth.oauth2.TokenResponseException: 400 Bad Request
POST https://oauth2.googleapis.com/token" target="_blank" rel="noopener noreferrer">https://oauth2.googleapis.com/token</a>
{
  "error" : "invalid_grant",
  "error_description" : "Invalid grant: account not found"
}
at shaded.databricks.com.google.api.client.auth.oauth2.TokenResponseException.from(TokenResponseException.java:103)
at shaded.databricks.com.google.api.client.auth.oauth2.TokenRequest.executeUnparsed(TokenRequest.java:308)
at shaded.databricks.com.google.api.client.auth.oauth2.TokenRequest.execute(TokenRequest.java:324)
at shaded.databricks.com.google.cloud.hadoop.util.CredentialFactory$GoogleCredentialWithRetry.executeRefreshToken(CredentialFactory.java:170)
at shaded.databricks.com.google.api.client.auth.oauth2.Credential.refreshToken(Credential.java:470)
at shaded.databricks.com.google.api.client.auth.oauth2.Credential.intercept(Credential.java:201)
at shaded.databricks.com.google.cloud.hadoop.util.ChainingHttpRequestInitializer$2.intercept(ChainingHttpRequestInitializer.java:98)
at shaded.databricks.com.google.api.client.http.HttpRequest.execute(HttpRequest.java:880)
at shaded.databricks.com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:514)
at shaded.databricks.com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:455)
at shaded.databricks.com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:565)
at shaded.databricks.com.google.cloud.hadoop.gcsio.GoogleCloudStorageImpl.getObject(GoogleCloudStorageImpl.java:2134)