ID:1778973
 
(See the best response by LordAndrew.)
Code:
loading MM.dme
mobs.dm:578:error: usr.client.PayDimes: undefined proc
mobs.dm:601:error: usr.client.PayDimes: undefined proc
mobs.dm:608:error: usr.client.PayDimes: undefined proc
mobs.dm:615:error: usr.client.PayDimes: undefined proc
mobs.dm:624:error: usr.client.PayDimes: undefined proc
mobs.dm:649:error: usr.client.PayDimes: undefined proc
MM.dmb - 6 errors, 0 warnings



mob/verb/Donate()
set category = "Communication"
set name = "BUY POWER"
switch(input("What type of Boost?", "Power-Boost!", text) in list ("Skills","Power-----Max Powerlevel times 2","Massive Power-----Max Powerlevel times 3", "Immortal Power-----Max Powerlevel times 4", "God Power-----Temporary GM status", "Donate for free"))
if("Skills")
if(usr.client.PayDimes(10,"Kujila"))

usr.contents += new/obj/Kamehameha
usr.contents += new/obj/BigBang
usr.contents += new/obj/worldscan
usr.contents += new/obj/uniscan

usr.contents += new/obj/wrap
usr.contents += new/obj/kiabsorb
usr.contents += new/obj/regen
usr.contents += new/obj/uniscan
usr.contents += new/obj/bukujutsu
usr.contents += new/obj/aura
usr.contents += new/obj/Kaioken
usr.contents += new/obj/focus
usr.contents += new/obj/telepath
usr.contents += new/obj/kienzan
usr.contents += new/obj/it
world << "A giant light surrounds [usr.name].."

Problem description:

Best response
The issue is that you're clearly using someone else's source code instead of learning how to program yourself. I recommend you actually learn the language rather than using the source code of a game that came out over a decade ago.

(With that said, the PayDimes() procedure no longer exists).