Stored Procedure T -sql Syntax Errors

Hi, i'm writing this stored procedure -




Code Snippet
USE [TheHub]
GO

create proc dbo.sp_GetInvitationsHistoryDetails(@ExecID int, @OrgID int)
as
IF (@OrgID = 0)
BEGIN
select E.EventID,E.Description as Event,E.EventDate as Date
I.Attending as [Att'g],NotAttending as [Not att'g],I.Bootcamp as [Maybe] I.Attended
FROM Invitations I INNER JOIN Events E on I.EventID=E.EventID
WHERE I.MemberID=@ExecID and NotForStats=0
ORDER BY E.EventDate DESC
END
ELSE
BEGIN
select E.EventID,E.Description as Event,E.EventDate as Date
count(*) as Invited,SUM(CONVERT(smallint,I.Attended)) AS Attended
FROM Invitations I INNER JOIN Events E on I.EventID=E.EventID
WHERE I.MemberID IN (select ID FROM Executives WHERE OrganisationID=OrgID
GROUP BY E.EventID,E.Description,E.EventDate
ORDER BY E.EventDate DESC
END


and i'm getting the following syntax errors when i check it -


Msg 102, Level 15, State 1, Procedure sp_GetInvitationsHistoryDetails, Line 10

Incorrect syntax near 'I'.

Msg 102, Level 15, State 1, Procedure sp_GetInvitationsHistoryDetails, Line 19

Incorrect syntax near 'count'.

Msg 156, Level 15, State 1, Procedure sp_GetInvitationsHistoryDetails, Line 23

Incorrect syntax near the keyword 'ORDER'.

Originally i just ran this sql from C# and it worked, obviously added the @ to the variables but it's basically the same.

Any ideas??