Being banned from PS2 in the past shouldn't affect whether the plugin loads or not. Try going under the install directory: Recursion/RecursionTracker/ Delete the 'temp' folder. Under Mods/ Delete the '3' folder.

Then start the tracker and it should redownload the PS2 files and start it. If not try going under Help -> Update and choosing Repair Install.

Finally if that doesn't work uninstall the program and delete the RecursionTracker folder to clean up any remaining files, then re-install.