diff --git a/mod.py b/mod.py
index 29d7068..f621bbb 100644
--- a/mod.py
+++ b/mod.py
@@ -4,7 +4,7 @@ import json
 
 from telebot import types,util
 
-global db, users, la
+global users, la
 
 ####### CREATE DB IF NOT EXIST
 
@@ -31,25 +31,24 @@ if not os.path.exists('la.json'):
 ############WORK WITH DBs##########
 
 def read_db():
-        global db
-        with open('db.json', 'r') as openfile:
-                db = json.load(openfile)
-def write_db():
-        global db
-        js = json.dumps(db, indent=2)
-        with open('db.json', 'w') as outfile:
-                outfile.write(js)
+    with open('db.json', 'r') as openfile:
+        db = json.load(openfile)
+        return db
+def write_db(db):
+    js = json.dumps(db, indent=2)
+    with open('db.json', 'w') as outfile:
+        outfile.write(js)
 
 
 def read_users():
-        global users
-        with open('users.json', 'r') as openfile:
-                users = json.load(openfile)
+    global users
+    with open('users.json', 'r') as openfile:
+        users = json.load(openfile)
 def write_users():
-        global users
-        js = json.dumps(users, indent=2)
-        with open('users.json', 'w') as outfile:
-                outfile.write(js)
+    global users
+    js = json.dumps(users, indent=2)
+    with open('users.json', 'w') as outfile:
+        outfile.write(js)
 
 # LA - Low Admin.
 # Admin permissions in bot without admin rights.
@@ -189,7 +188,7 @@ def analytic(message):
 #############TOKEN INIT#####
 
 
-read_db()
+db = read_db()
 read_users()
 bot = telebot.TeleBot(db['token'])
 
@@ -320,20 +319,19 @@ def unban(message):
 def setwelcome(message):
 	try:
 		if have_rights(message):
-			global db
+			db = read_db()
 			db[str(message.chat.id)] = message.html_text[ message.text.find(' ') + 1 :]
 
 			bot.reply_to(message, f'''Установлено новое приветственное сообщение:
 \n{db[str(message.chat.id)]}''', parse_mode='HTML')
-			write_db()
+			write_db(db)
 	except Exception as e:
 		catch_error(message, e)
 
 @bot.message_handler(commands=['welcome'])
 def welcome(message):
 	try:
-		global db
-		read_db()
+		db = read_db()
 		bot.reply_to(message, f'''Приветственное сообщение:
 \n{db[str(message.chat.id)]}''', parse_mode='HTML')
 	except Exception as e:
@@ -377,6 +375,22 @@ def delete(message):
 	except Exception as e:
 		catch_error(message, e)
 
+@bot.message_handler(commands=['pin'])
+def pin(message):
+	try:
+		if have_rights(message):
+			bot.pin_chat_message(message.chat.id, message.reply_to_message.id)
+	except:
+		catch_error(message, e)
+
+@bot.message_handler(commands=['unpin'])
+def unpin(message):
+  try:
+    if have_rights(message):
+      bot.unpin_chat_message(message.chat.id, message.reply_to_message.id)
+  except:
+    catch_error(message, e)
+
 ### EXPEREMENTAL
 
 @bot.message_handler(commands=['secret'])
@@ -438,7 +452,7 @@ def la_list(message):
 	try:
 		if have_rights(message, set_la=True):
 			la = read_la()
-			if have_la(str(message.chat.id)):
+			if have_la(message):
 				s = 'Список администраторов в режиме low-admin:\n'
 				for i in la[str(message.chat.id)]:
 					s = s + '\n@' + i
@@ -451,7 +465,7 @@ def la_add(message):
 	try:
 		if have_rights(message, set_la=True):
 			la = read_la()
-			if have_la(message.chat.id):
+			if have_la(message):
 				nick = message.text.split()[1][1:]
 				print(la)
 				la[str(message.chat.id)].append(nick)
@@ -466,7 +480,7 @@ def la_del(message, set_la=True):
 	try:
 		if have_rights(message, set_la=True):
 			la = read_la()
-			if have_la(message.chat.id):
+			if have_la(message):
 				nick = message.text.split()[1][1:]
 
 				if nick in la[str(message.chat.id)]:
@@ -514,8 +528,12 @@ def support(message):
 @bot.message_handler(content_types=['new_chat_members'])
 def handler_new_member(message):
 	try:
-		global db
-		read_db()
+		db = read_db()
+		if str(message.chat.id) not in db:
+			db[str(message.chat.id)] = 'Приветственное сообщение не задано.\n Задайте его с помощью /setwelcome ...'
+			la = read_la()
+			la[str(message.chat.id)] = []
+			write_la(la)
 		bot.reply_to(message, db[str(message.chat.id)], parse_mode='HTML')
 		analytic(message)
 	except Exception as e: