Hmm, that's a pretty strange loading screen error.
What sort of computer do ye 'ave?
How much free space is left on the computer?
How old is y'er computer?
Did ye download any mod right before this issue started? (Try really hard to remember; a year and a half is a long ways back.)
What's the game's resolution? (Check this by opening up two instances of FH to get the white info box.)
What's the computer screen's resolution? Compare the two to see if changes are needed.
'Ave ye tried running the game as administrator?
Try going through this check list and see if anything above is the issue. Best of luck, deary.