Google Authenticator generates a TOTP token, but it will not authenticate for any MFA enabled resource.
Multi-factor or "Two-Factor" apps like Google Authenticator implement what is called the Time-Based One-Time Password (TOTP) algorithm. It has the following ingredients:
Because the algorithm is signing (or rather, generating the MFA code) based on the time of the mobile device, it is important that the device has an for Google Authenticator to properly generate the authenticator code for access so that it matches the shared secret and time input as expected on the server.
To make sure that you have the correct time in Google Authenticator:
Alternatively, if the TOTP key was lost, you may reset the JumpCloud password to obtain a new key. You may also opt to try a different TOTP token generator such as Duo Mobile or FreeOTP.