One way to finance your business in an advanced stage of liquidity crisis is to ask to defer existing accounts payable.
You need courage to take such a step. Normally, you operate within existing contracts and agreements. Especially in special situations, be aware that you can also break out of these conventions. If you can no longer keep to your agreements and your company becomes insolvent, your economic environment will also suffer. Therefore, look for possible solutions outside of the agreements. Seek open discussions.
There is a rational probability that suppliers will get involved if they do not want to risk the loss of future business with your company. Communicate honestly and remain fair to those suppliers who support you.
Experienced business consultants can provide hands-on assistance with this step.
There is also the possibility of arranging a restructuring/reorganization loan with your principal bank.