Unityplayer.dll was not found

Got a Unityplayer.dll error issue today. What is Unityplayer.dll? I have attached the screenshot.Screen Shot 2020-11-03 at 10.31.49 AM

Any help on this topic, please?

Reinstalling the program may fix this problem.

@CrazyCat, Thanks for your suggestion. Reinstalling the program didn’t help me but another trick worked for me actually. What I did is downloaded the unityplayer.dll from here: https://dlldownloads.com/unityplayer-dll/ and replaced the older file with the new one.