Hi Sean Reilly,
It's possible that, as you have no current PAYE income, your online record is using your last example of PAYE income as a placeholder.
You may want to contact Companies House, though, to confirm everything is resolved with your old limited company.
You can reach them here:
Contact Companies House.
Then get in touch with us by webchat or post here:
Income Tax: general enquiries
Where we can review your PAYE record.
Thank you.