Icons not showing properly in OJS 3.0.2 after enabling SSL certificate

Can you help me with the problem, that we encountered. After enabling SSL certificate the icons in OJS 3.0.2 stoped showing properly.

More at

more at http://ojs.cepsj.si/

we changed this in the files:

; The canonical URL to the OJS installation (excluding the trailing slash)
base_url = “https://ojs.cepsj.si

;;;;;;;;;;;;;;;;;;;;;
; Security Settings ;
;;;;;;;;;;;;;;;;;;;;;

[security]

; Force SSL connections site-wide
force_ssl = On

; Force SSL connections for login only
force_login_ssl = On

Hi @LeaVrecko,

Check your web server access log; there are some 404 errors that may be related.

Regards,
Alec Smecher
Public Knowledge Project Team

Thank you for your response.
Regards, Lea