Unable to Import Project - Feature Film

I have a Davinci .drp project that contains a full $600,000 feature film I directed and I can't open it.
The colorist sent me the file. I need to deliver an export of the movie to the distributor, Vertical Entertainment. So I need to open the .drp. He colored in Davinci Resolve Studio 18.
When I try to open in Resolve Studio 18, I first get two errors about missing plugins then get the error "Unable to Import Project". I have all the footage and the same drives that he used, so shouldn't be a missing footage issue.
So then I decided to try to open the .drp in the free version of Resolve 18. In the free version of Resolve, I can see the project and a thumbnail, but a message says "You have reached a limitation with Davinci Resolve" and asks me to upgrade to davinci studio to open the project.
Of course, when I upgrade I get the "Unable to Import Project" message.
Can anyone help?
The colorist sent me the file. I need to deliver an export of the movie to the distributor, Vertical Entertainment. So I need to open the .drp. He colored in Davinci Resolve Studio 18.
When I try to open in Resolve Studio 18, I first get two errors about missing plugins then get the error "Unable to Import Project". I have all the footage and the same drives that he used, so shouldn't be a missing footage issue.
So then I decided to try to open the .drp in the free version of Resolve 18. In the free version of Resolve, I can see the project and a thumbnail, but a message says "You have reached a limitation with Davinci Resolve" and asks me to upgrade to davinci studio to open the project.
Of course, when I upgrade I get the "Unable to Import Project" message.
Can anyone help?