it works

code/__HELPERS/custom_holoforms.dm

@@ -46,17 +46,11 @@
 			I = getPAIHologramIcon(I)
 	return I
 
-//Errors go to user.
-/proc/generate_custom_holoform_from_prefs_safe(datum/preferences/prefs, mob/user)
-	if(user)
-		if(user.client.prefs.last_custom_holoform > world.time - CUSTOM_HOLOFORM_DELAY)
-			to_chat(user, "<span class='boldwarning'>You are attempting to set your custom holoform too fast!</span>")
-			return
-	return generate_custom_holoform_from_prefs(prefs, null, null, TRUE, TRUE)
-
 //Prompts this client for custom holoform parameters.
 /proc/user_interface_custom_holoform(client/C)
-	message_admins("poge")
+	if(C.prefs.last_custom_holoform > world.time - CUSTOM_HOLOFORM_DELAY)
+		to_chat(C.mob, "<span class='boldwarning'>You are attempting to set your custom holoform too fast!</span>")
+		return
 	var/datum/preferences/target_prefs = C.prefs
 	if(target_prefs.path)
 		var/list/characters = list()
@@ -65,14 +59,15 @@
 			var/name
 			var/max_save_slots = C.prefs.max_save_slots
 			for(var/i=1, i<=max_save_slots, i++)
+				S.cd = "/character[i]"
 				S["real_name"] >> name
-				characters[i] = name
+				characters += name
 			var/chosen_name = input(C, "Which character do you wish to use as your appearance.") as anything in characters
 			if(chosen_name)
 				target_prefs = new(C)
-				if(!target_prefs.load_character(characters[chosen_name]))
+				if(!target_prefs.load_character(characters[chosen_name], TRUE))
 					target_prefs = C.prefs
 
 	ASSERT(target_prefs)
 	//In the future, maybe add custom path allowances a la admin create outfit but for now..
-	return generate_custom_holoform_from_prefs_safe(target_prefs, C.mob)
+	return generate_custom_holoform_from_prefs(target_prefs, null, null, TRUE, TRUE)

code/modules/mob/living/silicon/custom_holoform.dm

@@ -8,6 +8,7 @@
 		return
 	if(client.prefs.last_custom_holoform > world.time - CUSTOM_HOLOFORM_DELAY)
 		to_chat(src, "<span class='warning'>You are attempting to change custom holoforms too fast!</span>")
+		return
 	var/icon/new_holoform = user_interface_custom_holoform(client)
 	if(new_holoform)
 		client.prefs.custom_holoform_icon = new_holoform