File not opening - Dimension tells me to post here!

Hi everybody,

I have done a lot of work on a complex floorplan in Dimension. All was well until I left the file I was working on to open another and copy an asset from there. Then when I tried to re-open the file I had been working on it does not open, and there is a window advising me to copy the log and post it here.

I attach the log - if anybody can help I'm very grateful, it was a whole evening's work!

Thank you,

Adrian