drawing opening error message

Hi all, trying to open a drawing created a few months ago produces the following error message;



A more recent drawing opens fine with no problems
ABORT closes the programme
RETRY opens a new dialoge box:

IGNORE brings up windows trying to find a solution (none!)

Any suggestions how to get this drawing open, gratefully received!

can you zip the file and attach it for review?

Also, which version of LC do you use?