The conversion endpoint isn't working inside your wallet app. Your crypto of is currently valued near 50$ , which you can turn it into using exchange platforms.
(The actual value of the crypto might change depend on market activity, and it's up to you to research what you should invest in)
If you don't see any value in LTC, feel free to exchange it to another currency, or send it to me :)
Maybe try transfering it to another app; preferably on another device?
Do not send your seed codes to anyone, this'll let them take over the wallet itself