Update has crashed my home assisant

Installation
1

Hi There, I just tried to update my home assistant and it is now in recovery mode

this is the errors I am getting:

Error loading /config/configuration.yaml: while scanning a simple key
  in "/config/configuration.yaml", line 18, column 5
could not find expected ':'
  in "/config/configuration.yaml", line 19, column 5

Am i able to fix the file or restore to the back up? I had the backup HA checkbox ticked.

2

Show your configuration.yaml. What is on line 18 and 19 ?

3

Hi Francisp, trying to work out how to get to the file now. the recovery mode seems pretty stripped bare.

4

is it possible to get to the file in recovery mode?

5

is there anything I can do to edit this file in recovery mode?
or can i use the backup I selected when doing the update?

or do I just start building this again from scratch?