Hello after the latest update the script to unlock the interceptor pistol doesn't seem to work anymore ( it works for other weapons though which is weird)

I was using this script:

Code:
local wep_arr = { 
   'usp'
} 
for i, name in ipairs(wep_arr) do 
   if not managers.upgrades:aquired(name) then 
      managers.upgrades:aquire(name) 
   end 
end
Could anyone suggest me an alternative way for unlocking it or tell me why it's not working anymore ? Thank you very much in advance