Json Credential Connects, but i i can't acess the sheets shared with the account

[brianamaral]

Hi, i'm trying to use your API in my pentaho project, but i simply can't acess the sheets.
The connection test goes just fine, and the spreadsheet key and worksheet id are all right, but when i try to get the fields, this message appears
400 Bad Request { "error" : "invalid_grant", "error_description" : "Invalid JWT: Token must be a short-lived token (60 minutes) and in a reasonable timeframe. Check your iat and exp values in the JWT claim." }

[jfmonteil]

Hello I will investigate