Cant send stacks off desktop wallet?

I have version 3.1.1 for windows 10 and I can’t send my stacks offsite to another ledger wallet . It won’t populate when I try and paste Wallet address . What’s my best recourse to send them back to an exchange or other wallet ? Please advise …
Steve

Hello, following the launch of Stacks 2.0 on Jan. 14th 2021, users must use the new version of the Stacks wallet to transact with Stacks. The Stacks Wallet v3 and older can no longer be used for sending or receiving STX tokens and is effectively “read only.”

In order to access and transact with your STX, login to the new Stacks Wallet available at hiro.so/wallet by selecting “I already have a wallet” after downloading, and enter your secret key associated with your Stacks holdings. Your secret key is either a 24 word secret phrase or connected to a hardware device such as Trezor or Ledger.