Vim airline height problem

[BigfootN]

Hello,
I am currently having a little problem loading a session that had a syntastic prompt showing errors.
This is what it looks like when loading the session :

And this is what it should look like :

Here are my syntastic settings:

let g:syntastic_check_on_open = 1
let g:syntastic_always_populate_loc_list = 1
let g:syntastic_auto_loc_list = 1

and here are my vim-session settings:

set sessionoptions-=help
set sessionoptions-=blank

let g:session_autosave = 'yes'

Thank you in advance for any response 😄

[BigfootN]

Okay, so I think I found the problem, everything seems so better and faster now.
I only deleted the session I was working on and I created a new session.