Media Composer 2021 Hangs on Loading ExporterAVI.prm

HI Out there

I need to complete a project edited in Avid and can't get Media Encoder to open since it upgraded to the latest version. Thankfully I havn't renewed it since my annual contract ran out and am on a trial with 3 days left. All was well last week but am now running out of time.

Running Windows 10 64 bit if that helps. 

Many thanks, Geoff Pearson