How can I fix my theme code after an unsuccessful menu move?

[Refillandgo]

Can anyone help me please?  Yesterday i was looking online to see if i could move my menu to the left of the screen and found some code so pasted it into my theme code and saved it but it didnt work so i deleted the code again within a few mins and everything seemed to be ok.  This morning my store is now messed up. I have an error message but there isn't and wasn't anything on the line it says there is an error on.  This is the error: Invalid CSS after " }": expected "}", was "" at 14058.

I looked on row 14058 but the code stops at 14028 so nothing to change on it.  My shop is currently not accessible and support are not able to help.

When i access the theme it doesnt say there are any other versions to roll back to either...

[Refillandgo]

my shop is - refill-go.myshopify.com