Lost ability to raise new invoices?

Frustratingly as this weekend was my nominated accounts and billing weekend, I seem to have lost the ability to raise invoices on my Clearbooks account.

I get a error message saying that I am not authorised to create invoices and to contact my administrator. It's only me in the business?

Can reach my Accountant or Clearbooks as it's a Saturday. :(

Anyone else having this problem?

This is going to hold me back on month end billing....grrr