Hello Sukumar - are you self employed or a Ltd Company?
If you are a Ltd Company then clear books only ever (briefly) created year end accounts suitable for companies house and then only for very simple companies. They were never suitable for submission to HMRC so I'm confused over what your accountant did.
It is usual for the accountant to take the basic P&L and Balance sheet reports from the bookkeeping and then add the necessary pages for submission to the authorities using the .GOV gateway or 3rd party software.
So, if neither you nor your accountant use 3rd party software to create year end accounts, then you must use the .GOV filing service, filling in the numbers and facts from your bookkeeping. In the past accountants have been able to do this for you by logging in to your Government gateway, but this is being stopped and so either you do it yourself using the gateway or, like most accountants, your accountant has to use 3rd party software.