The Victorian Government will not re-nominate applicants who are subject to a section 48 bar where their nomination has expired and they are unable to leave Australia.
The section 48 bar applies to applicants who have had a visa refused or cancelled since their last entry into Australia. If you are subject to a section 48 bar you need to leave Australia before you can reapply for a visa.
Once offshore, you may consider all visa options, including Victorian nominated visas.
Should you wish to return to Australia while travel restrictions remain in place you may request an exemption from the Department of Home Affairs.
Contact the Department of Home Affairs about Australian entry conditions
Many visa applications are affected by travel restrictions and ongoing impacts of the pandemic worldwide. You will need to contact the Department of Home Affairs directly for enquiries relating to entry conditions and visa obligations:
The Department of Home Affairs also publishes additional information about travel obligations for entering and leaving Australia.
Source: https://liveinmelbourne.vic.gov.au/news-events/news/2020/section-48-bar-and-victorian-visa-nominations