I think it's still trying to load the non-metamod version of GrogBot, which isn't working in 1.1 anymore. To fix this, go to your pvk directory and open the liblist.gam file in notepad.
Replace this:
Code:
gamedll "GrogBot\grogbot.dll"
With this:
Code:
gamedll "addons\metamod\dlls\metamod.dll"
Then follow the metamod version installation instructions in the readme.