Tvheadend

Hello.

I'm running TVHeadEnd server on my RPi2 with jessie lite and it has done a good job for several years. Unfortunally my sd-card went down, so i have to start all over.
First i did try to compile TVHeadend as i did the first time i used TVHeadend, but now i'll get a hole lot of errors, that i did't get the first time.
So i formatted the sdcard and put a new Raspbian-Jessie distro on it.
I have followed the official download guide: [[https://tvheadend.org/projects/tvheadend/wiki/AptRepositories]]
But it will end up with this error when i'll try to to the install:

E: Failed to fetch http://apt.tvheadend.org/stable/artifacts/v5/pzfh7cog/tvheadend_4.2.8-22~g67e75a9~raspbianjessie_armhf.deb  Size mismatch

I been searching the forum but i can't find the solution and i don't understand what is wrong.
Can anyone please tell me what to do??
I'm pretty lost without my TVHeadend server as i serves all my tv channels to my Kodi media center.
In advance thanks.