On the page that opens from the link, type in the e-mail address you have used to register to TeamUp to the given field. The new password will be sent to you to that address.
After you have logged in to TeamUp with the system generated password that was sent to you, we recommend that you change the password to a new one straight away - and preferably to such a password that you can also remember! You can find instructions for changing your password from another support article that's linked below.
NOTE: If you have signed up to TeamUp and created your user account by using Facebook login credentials, you currently cannot use this password request feature if you have problems signing in.