I just test compiled all of the plugins with both AMX Mod X 1.8.2 and AMX Mod X 1.9.0 and all were successful. If you're using version 1.9.0 or newer, you will get a warning about client_disconnect() being deprecated but you can ignore that.
So, make sure that you have a complete and valid installation of AMX Mod X 1.8.2 or newer. Copy the entire contents of the "scripting" folder from Github into your AMX Mod X's "scripting" folder. Then, compile the amxbans_<xxx>.sma plugins from this location in the AMX Mod X files.