Code (Text):

1. #Made by BigBrainFrog / Frog
2.  
3. variables:
4.   {warns}  = 0
5.  
6. # Warn Command
7. command /warn <offline player> <text>:
8.   permission: warn.sk
9.   permission message: &4&lYou do not have permission to use this command!
10.   trigger:
11.     if arg-1 is set:
12.       if arg-2 is set:
13.         add 1 to {warns.%arg-1's uuid%}
14.         broadcast "&a----------------------------------------------"
15.         broadcast "&c[&6Warning System&c] &6%player% &cwarned &6%arg-1%"
16.         broadcast "&c[&6Warning System&c] They now have %{warns.%arg-1's uuid%}% warn(s)."
17.         broadcast "&c[&6Warning System&c] Reason: &6%arg-2%"
18.         broadcast "&a----------------------------------------------"
19. # Checks if warn count is divisible by 5 and if it is, it bans the player
20.         {warns.%arg-1's uuid%} is divisible by 5:
21.           {warns.%arg-1's uuid%} is not 0:
22.             console command "tempban %arg-1% 3h &4&lHaving too many warnings!"
23.  
24. # Unwarn Command
25. command /unwarn <offline player>:
26.   permission: warn.sk
27.   permission message: &4&lYou do not have permission to use this command!
28.   trigger:
29.     if arg-1 is set:
30.       if {warns.%arg-1's uuid%} is 0:
31.         send "&a----------------------------------------------" to player
32.         send "&c[&6Warning System&c] You can't have negative warns!" to player
33.         send "&a----------------------------------------------" to player
34.       if {warns.%arg-1's uuid%} is not 0:
35.         remove 1 from {warns.%arg-1's uuid%}
36.         broadcast "&a----------------------------------------------"
37.         broadcast "&c[&6Warning System&c] &6%player% &cunwarned &6%arg-1%"
38.         broadcast "&c[&6Warning System&c] They now have %{warns.%arg-1's uuid%}% warn(s)."
39.         broadcast "&a----------------------------------------------"
40.  
41. # Check Warns Command
42. command /checkwarns <offline player>:
43.   permission: warn.sk
44.   permission message: &4&lYou do not have permission to use this command!
45.   trigger:
46.     broadcast "&a----------------------------------------------"
47.     broadcast "&c[&6Warning System&c] &6%arg-1% &chas %{warns.%arg-1's uuid%}% &cwarn(s)."
48.     broadcast "&a----------------------------------------------"
49.  
50. # Clear Warns Command
51. command /clearwarns <offline player>:
52.   permission: warn.sk
53.   permission message: &4&lYou do not have permission to use this command!
54.   trigger:
55.     set {warns.%arg-1's uuid%} to 0
56.     broadcast "&a----------------------------------------------"
57.     broadcast "&c[&6Warning System&c] &6%player% &chas cleared &6%arg-1%&6's &cwarnings."
58.     broadcast "&a----------------------------------------------"

^ what you asked for <3