LG G3 teamwin recovery topic

Hello everyone,

I just bought a lg g3 D855 from a friend. It was running on android 4.4.2.

I got a OTA for android 5 so i went ahead and downloaded it.

Immediately after the download as the phone restarted,I got this team win recovery project page with options like
install,wipe,backup,restore mount etc.

I have no idea what this means at all. I just wanted to install the lollipop upgrade :(

Please help me I dont know what to do. I cannot even use my phone now.

Thank you people.

Regards,

Derek.