Conversion failed when converting the varchar value 'Email' to data type int - sql

Question

I have a stored procedure that is getting data from some other database tables and and putting them into another table. I am running into an error
Conversion failed when converting the varchar value 'Email' to data type int.
However, I don't see where/how a data conversion would take place.
I have checked the data types for both where I am getting the email address and where I am inserting the email address. They are both set to varchar(255).
DECLARE #prefix varchar(50), #middle varchar(50), #suffix varchar(50),
#companyID int, #companyNm varchar(100),
#badge varchar(50), #title varchar(100), #salutation varchar(50),
#pplType int, #email varchar(255), #specialty int,
#mailpref int, #source int,
#add1 varchar(100), #add2 varchar(100), #city varchar(50),
#state varchar(50), #zip varchar(50), #countryID int,
#phone varchar(50), #ext varchar(50), #fax varchar(50),
#addID int, #addType int, #arrival datetime, #departure datetime,
#regType varchar(50), #mtRegID int
SELECT #regType = regType
FROM Registration
WHERE personID = #personID AND meetingCode = #meetingCode
SELECT
#prefix = [Name Prefix], #middle = Middle, #suffix = [Name Suffix],
#companyID = [Company ID], #companyNm = [Company Name],
#badge = [Badge Name], #title = Title,
#salutation = Salutation, #pplType = [People Type],
#email = Email, #specialty = [Specialty ID], #mailpref = MailPref,
#source = [Source ID]
FROM
MeetingtrakTest.dbo.tblPeople
WHERE
[Person ID] = #personID
SELECT
#add1 = Address1, #add2 = Address2, #city = City, #state = State,
#zip = Zip, #countryID = [Country Id],
#phone = Phone, #ext = Extension, #fax = Fax, #addID = [Address ID]
FROM
MeetingtrakTest.dbo.tblPeopleAddresses
WHERE
[Person ID] = #personID AND [Primary] = 1
SELECT
#arrival = [Meeting Start Date], #departure = [Meeting End Date]
FROM
MeetingtrakTest.dbo.tblMeetings
WHERE
[Meeting Code] = #meetingCode
INSERT INTO tblRegistration ([Person Id], [Pre or On-Site], [Attendee List], [Use Company Name], [Reg Date], [Use Housing Costs], [Use Itinerary Costs], Attended, [Date Entered], [Entered By], [Date Updated], [First Name], [Last Name], [Meeting Code], [Registration Code], [Name Prefix], Middle, [Name Suffix], [Company ID], [Company Name], [Badge Name], Title, Salutation, [People Type], [Email], [Specialty ID], MailPref, Source, [Address 1], [Address 2], City, State, Zip, [Country ID], Phone, Extension, Fax, [Address Id] ,[Address Type], [Arrival Date], [Departure Date])
VALUES (#personID, 1, 1, 1, GETDATE(), 0, 0, 0, GETDATE(), 'etrak', GETDATE(), #first, #last, #meetingCode, #regType, #prefix, #middle, #suffix, #companyID, #companyNm, #badge, #title, #salutation, #pplType, #email, #specialty, #mailpref, #source, #add1, #add2, #city, #state, #zip, #countryID, #phone, #ext, #fax, #addID, #addType, #arrival, #departure);
SET #mtRegID = SCOPE_IDENTITY();