I just downloaded SDK Hooks 2.2.0 dev HG193 and installed it. Instead of an error message, the game now crashes on
Code:
SDKHook(client, SDKHook_GroundEntChangedPost, OnGroundEntChanged);
Link to my full plugin code:
http://pastebin.com/rqaEBS3p
(relevant lines are marked with "Causes crash!")