[server] Ubuntu can't start! Please help

Hello Guys!

I have a problem and need very fast an answer! ...

First of all, sorry for my english it isn't my first languague.

My problem is, that my Server can't start.

The Server was on ubuntu server 15.10 and i upgraded it (via SSH) to ubuntu server 16.04.

So after that, the server started sucessfully.

Then i made a reboot ... and now it don't start - it boot in GRUB rescue.

So i typed

When i tried to type

ls (hd0)

ls (hd0,msdos1)

ls (hd0,msdos5)

The same for the other drives (only 1 work and there isn't eaven 1 File on it!

I tried the "programm" "startup repair" via CD ... it didn't work for me.

Here is the log: http://paste.ubuntu.com/16399349/

I hope some of you can help me fast

But please don't use difficulte words in english ... and im a newbie in ubuntu / linux ^^

Greatings