Update 2: The app somehow refuses to work again. Doing the method above doesn't help neither.
I noticed that my antivirus was deleting the file, so I tried turning off the program. Doesn't help much.
I also noticed that the "missing" dll file is deleted after repairing process is over, which kind of "resetting the cycle". Antivirus is disabled at the time as well, so I'm not sure what the problem is.
Edit: somehow internet lagged and sent this message twice