Please Help-me Upgrade Script Errors

TyHover

Hello everyone, I want to update the active (PUN) for a current version and some errors appear for someone to take a look at my script below:

ERROR 1:

error CS1502: The best overloaded method match for `ChatDemo.AddChatMessage(string, PhotonMessageInfo)' has some invalid arguments


error CS1503: Argument `#2' cannot convert `null' expression to type `PhotonMessageInfo'

protected virtual void Send()
	{

		if (!string.IsNullOrEmpty(m_InputLine))
		{
			if (MessageOK(-1, m_InputLine))
				AddMessage(m_InputLine);
			else
			{
				switch(FilterMode)
				{
					case MessageFilterBehavior.Alert:
						PlaySound(m_Chat.ChatErrorSound);
						break;
					case MessageFilterBehavior.Silent:
						AddChatMessage(GetFormattedPlayerName(PhotonNetwork.player.ID) + m_InputLine, null);
						PlaySound(m_Chat.ChatSound);
						break;
				}
			}
			SnapToBottom();
		}
		m_InputLine = "";
		GUI.FocusControl("");
		ShowTextInput(false);

	}

LINE ERROR: AddChatMessage(GetFormattedPlayerName(PhotonNetwork.player.ID) + m_InputLine, null);

ERROR 2:

error CS0019: Operator `!=' cannot be applied to operands of type `PhotonMessageInfo' and `null'

	
[PunRPC]
void AddChatMessage(string message, PhotonMessageInfo info)
{

	bool shouldSnapToBottom = IsViewAtBottom;

	if (ViewRectHeight > LogPixelHeight)
		shouldSnapToBottom = true;

	string prefix = "";
	if (info != null)
	{
		if (!MessageOK(info.sender.ID, message))
		return;
		prefix = GetFormattedPlayerName(info.sender.ID);
		if (message.Length > MaxMessageLength)
			message = message.Remove(MaxMessageLength);
		PlaySound(m_Chat.ChatSound);
	}

	while (message.Length > 0)
	{
		string s = ((string.IsNullOrEmpty(prefix)) ? "" : prefix);
		if (m_HaveSkin)
		{
		while ((message.Length > 0) && TextStyle.CalcSize(new GUIContent(s)).x < m_ViewRect.width - 16)
			{
				s += message[0];
				message = message.Substring(1);
			}
		}
		else
		{
			s = message;
			message = "";
		}
		m_Messages.Add(s);
	}

	if (m_Messages.Count > MaxMessages)
		m_Messages.Remove(m_Messages[0]);

	if (shouldSnapToBottom)
		SnapToBottom();

}

LINE ERROR: if (info != null)

TyHover

Help