Fix wrong private indexing

Signed-off-by: Yan Minari <yangm97@gmail.com>

lua/groupbutler/utilities.lua

@@ -244,7 +244,7 @@ local admins_permissions = {
 }
 
 local function set_creator_permissions(self, chat_id, user_id)
-	local red = self.red
+	local red = _p[self].red
 	local set = ("cache:chat:%s:%s:permissions"):format(chat_id, user_id)
 	for k, _ in pairs(admins_permissions) do
 		red:sadd(set, k)
@@ -393,7 +393,7 @@ function _M:resolve_user(username)
 	assert(username:byte(1) == string.byte('@'))
 	username = username:lower()
 
-	local stored_id = self.db:get_user_id(username)
+	local stored_id = _p[self].db:get_user_id(username)
 	if not stored_id then return false end
 
 	local user_obj = api:getChat(stored_id)
@@ -406,7 +406,7 @@ function _M:resolve_user(username)
 
 	-- Users could change their username
 	if username ~= '@' .. user_obj.username:lower() then
-		self.db:cache_user(user_obj)
+		_p[self].db:cache_user(user_obj)
 		-- And return false because this user not the same that asked
 		return false
 	end
@@ -780,7 +780,7 @@ function _M:getnames_complete(msg)
 end
 
 function _M:get_user_id(msg, blocks)
-	local i18n = self.i18n
+	local i18n = _p[self].i18n
 	--if no user id: returns false and the msg id of the translation for the problem
 	if not msg.reply and not blocks[2] then
 		return false, i18n("Reply to a user or mention them")