error /boot/grub/i386-pc/normal.mod not found

[Alita99]

Hello friends,

thank you to decide to put sometime helping us.
We get this message. Doing some research I could discover that this errors could verify after a system upgrade.
We were not installing some new ubuntu version. What we were doing was this process:

http://www.liberiangeek.net/2015/06/...-15-04-server/
once at the step:
Installing PHP5 and other modules

we didn't find the folder

• /var/www/html/

and we start searching a solution in another support when the error message appeared

Then we tried to find the boot folder using the General Troubleshooting Preparation section to locate the correct partitions and file locations.







Do you have some suggestion to solve the error in the grub?
thank you