Only run the admin script v2.0 alone, it uses very generic hook names causing it to conflict with other lua files. If you know how to script rewrite the script to make it work.
Type luareset in the console and type sv_restart 0 right after it. It'll clear all the lua scripts, after you've done that apply any lua script you want to add. The default lua file which usually loads other lua scripts is the server.lua located in (<game dir>\sys\lua\) just edit the file and write a line in the end like this...