Online filing error 1611
Full error message
The request has not been accepted.
Error type: business
Error number: 3001
The submission of this document has failed due to departmental specific business logic in the Body tag.
Type: Business
Number: 1611
Location: Known facts check
No original return yet recorded, please contact the helpdesk.
Reason for error
You are trying to submit an amended return when HMRC have no record of the original submission.
Solution
Go to Computation Preview > Generate Submission Files and file the company tax return as an original submission, not an amendment.