Trying to script something using Applescript

Hello! I am trying to script something that will type the address of a server into my Minecraft game. There is a text box, but when the script runs everything works except for the keystroke. Instead of typing in the words it says "Can't make "MCDisney.us" into type integer." Mcdisney.us is what I want it to type. This is the script. Can you please help me?

display dialog "Would you like to play MCDisney?" buttons {"Yes", "No"}
set button_r to the button returned of the result

if the button_r is "yes" then
tell application "Minecraft"
activate
end tell
delay 10
say "Please click on direct connect"
delay 5
tell "sytem events"
keystroke "MCdisney.us"
end tell
end if

if the button_r is "No" then
end if

 

I got it

I delayed the time between when I told the application "System events" and keystroked. Thanks for replying!