A possibility may be to see if the game has an active support site and/or a user forum; it could be you are not alone in your problem; do a search on Google of the game's name and maybe a brief description of the problem, something like...
"Farming Simulator 19" display problem pc
I tried the above search and came up with several possible links; since I don't really know the particulars of your situation, you'll have to see what actually fits; however, from what you've posted, this may be a close match to check out:
how to fix black screen fs19 --
https://steamcommunity.com/app/78786...7898974117448/
Hope this might help you...
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