Can't open client?

Hey, it started like an hour ago, everything was working fine and then the game crashed and now I can't seem to open the client. It gives me an error code:
"-2147024809 The parameter is incorrect"
and I have no clue what to do to fix it..

IGN if needed: Flexibie

Some other info that might help:
Windows 10 Home 64bit
32GB RAM
2k Monitor
I have Bitdefener Anti-virus (with exceptions on the game folder and the .exe file).
Also have IOBit Advanced system care and IOBit Malware fighter..


Any help in the matter would be greatly appreciated.

 

I also facing same issue

 

re-installing the game, fixed it for me..

 

I select windows vista service pack 2, now work well.
not sure how long it can last....

 

Use another monitor. Add exclusion?