DirectX 12 problem.please help guys!~

I accidentally set it to DirectX 12, and now I can't enter the game after reinstalling the game, and even reinstalling the entire steam still can't solve it, please help. .

I solved this problem after retrieving related topics, here is the solution:
manualy change the setting in the file production_Config.ini here -->
C:\Users\"your windows account name"\Documents\My Games\Path of Exile
or just delete it witch will reset settings back to default (DX11).