Answer
Yes, you will need to create a new account. You can create an account here. Note: that you can use the same email address that you used for your original Common App account.
Creating a Common App Account
How to Guide to the Common Application
You may only have one (1) First Year and one (1) Transfer account per type. Because the system will not let you create duplicate accounts, you can only set up one (1) First Year and one (1).
Once you’ve created a Common Application Account, there’s no option to completely remove it manually, but you may ensure that any future correspondence from the colleges listed in your account is deleted after it expires and is automatically deleted.
You cannot modify a submitted application or writing supplement once it has been received by any university (just as if you had mailed it in). We are not allowed to make improvements on your behalf.
Step 1: Select the program you wish to remove. To delete a campaign, go to Settings -> Step 2: Choose the program you’d want to remove. Go to Settings and select your account.
While the Common Application will retain your information as long as it is necessary to deliver you with the CommonApplication service, or for other acceptable reasons including longitudinal research that use aggregate data,