because initially ELS working on the version Framework 4! So, that working els [the version els doesn't matter], primarily necessary install NET Framework 4, later - Framework 4.7 [penultimate version]. And after that place ELS without any scripthook.dll, advanced hook.dll and similar elements. Only ELS.ini , ELS.asi and folder ELS
https://www.microsoft.com/en-US/download/details.aspx?id=55167 https://www.microsoft.com/en-US/download/details.aspx?id=17718