It could be a while before subcontractors will get paid (if at all) and you should consider how this will impact on your ability to continue to trade. Consider whether your personal assets are at risk (if you have given personal guarantees) and consider your risk of insolvent
You should get advice on the prospects of getting paid for invoices already issued and the issuing of invoice for other work already completed.
NECA Legal can assist with preparation of Applications for Adjudication of Payment Disputes under the Construction Contracts
Disclaimer; the short guidelines above are not legal advice and for more information on recovery of outstanding invoices call NECA Legal (WA) Pty Ltd on (08) 6241 6129 or email firstname.lastname@example.org.