I didnt change on it , logo is on all pages , my website is down now and doesnt works correctly

please dont judge me quickly  . I really didnt know its not on index i really thought its under image because it was on all pages . I added it now

Ok, Billy you have 1.8.2 version and you updated messages plugin without updating the core. Do you have a backup? 

Ok, I disabled messages plugin for now. 

Please update the core first, before updating the plugins. 

Now do the backup and then follow these instructions: https://developers.oxwall.com/forum/topic/24134

Then enable messages plugin back