Conversion failed when converting the varchar value to data type int

USE exercise
GO
CREATE PROC REPORT
@customerID VARCHAR
AS
SELECT * INTO #temp FROM customer,animal WHERE customer.customerID = @customerID
ALTER TABLE #temp
ADD
Printed SMALLINT
UPDATE #temp
SET Printed = 0
DECLARE @customerName VARCHAR (30)
DECLARE @customerTelephone VARCHAR(30)
DECLARE @animalID INT
DECLARE @animalName VARCHAR (30)
DECLARE @quantity INT
DECLARE @price INT
DECLARE @speciesName VARCHAR(40)
DECLARE @totalPrice INT
SELECT	
		@customerName = customer.customerName,
		@customerTelephone = customer.customerTelephone
		FROM customer 
		WHERE @customerID = customer.customerID

		PRINT 'CustomerID: ' +@customerID
		PRINT 'Customer Name ' +@customerName
		PRINT 'Customer Telephone: ' +@customerTelephone
		PRINT'animalID  animalName  quantity  price  Species  totalPrice'
		WHILE EXISTS (SELECT * FROM #temp WHERE Printed = 0)
		BEGIN
		SELECT @animalID = MIN(animalID) FROM #temp WHERE Printed = 0
		
		SELECT @animalName = animalName,
				@quantity = animalCustomer.quantity,
				@speciesName = species.specieName
				FROM animal
				 INNER JOIN animalCustomer ON animal.animalID = animalCustomer.animalIdentificater 
				INNER JOIN species ON species.specieName = animal.speciesIdentificater
				WHERE animal.animalID = @animalID
				SET @totalPrice = @price * @quantity			
				PRINT @animalID+'  '+@animalName+'  '+@quantity+'  '+@speciesName+'  '+@totalPrice			
		UPDATE #temp
				SET Printed = 1
				WHERE @animalID = animalID
		END
		
		
DROP TABLE #temp
GO