I sent some ROI Coins to term deposit. when it out of date, it will be paid back automatically or I have to do any thing else to withdraw it?
Yes. It will be paid back automatically
If that is the case, why does it show under deposits as Matured (Warning, this amount is no longer earning interest of any kind)
You need to send the deposit back to yourself. Create a new receiving address, enable coin control and choose your deposited coins as an input, then send them to the address you just created and they're ready to stake or deposit again.
Could you explain how we can send from the deposit address? I can only do that from my main address.