Error: CMN.ATO.AS.EM18030 Access to the Activity Statement is not available

Guidance: This is an ATO validation, and Lodgeit has no control on this,
There are may be a lot of reasons why it occurs, but only ATO can explain why. We've contacted regarding this error ATO tech team, they never provided us any clear details.
ATO answers were:
- Please request the Agent to confirm their authorisation level with this client. As an accountant, agent needs to be granted Full Access as an Authorised User or Authorisation Administrator via the ATO's Relationship Authorisation Manager (RAM). This must be done by a Principal Authority of that entity using their myID.
- The incident team have investigated this issue and advised that due to unique characteristics on the account, it is required that the Agent call the contact centre to enquire about this issue.
- It seems for this particular form even if you could not lodge it via OSFA then it could not be lodged electronically and only manual lodge is allowed.