Call HMRC’s Coronavirus helpline on 0800 015 9559. It is open Monday-Friday 8am-8pm and Saturday 8am-4pm
Ask to arrange a “time to pay” plan.
Do it sooner rather than later. Don’t leave it until after your payment deadline (for companies, the payment deadline is 9 months and 1 day after your year end date)
Look after yourselves and stay safe.