Validation error: "End tag header seen, but there were open elements."

Hi,
I keep getting this error even tho I have open and closed all my elements... Does anyone know how to fix this? Code:
https://codeshare.io/5w6V8x

Comments

[Samuelonoja]

add another closing section tag before the closing header tag at the end of the file

[lolleri200]

What tag is the closing tag I should add?

[Samuelonoja]

/section before the ending /header

[lolleri200]

Ohh thanks :)