The good news is that if the company goes into liquidation now you could not be restricted or disqualified, as you will not have been a director within 12 months of the liquidation date.
Companies are regularly late with their returns to CRO. A late return means that the accounts will now have to be audited, which should provide you with some assurance as to their accuracy.
The directors are obliged to hold an AGM of shareholders. You could write to the directors and say that unless they hold the AGM within, say, 4 weeks, that you will make a formal complaint to ODCE.
Given that you are no longer a director of the company you should try and exit any PG you have given.
Jim Stafford