Do you have d3dx9_26 and 40 .dll in your GTA folder too?
If not , then here's the download for both of these files because they are required to make the ENB series work:
http://www.enbdev.com/d3dx9_26.zip
http://www.enbdev.com/d3dx9_40.zip
@back on topic:
These enb settings look epic :)sometimes the reflections are lagging my game so I disable them or try another reflection settings xP
Edit: Possibly it's the dx8vb.dll file fault because many people who have enb series are using the d3d9.dll file...