Joomla generating massive error log

I have a massive error log generating in my joomla site non stop. I have no idea about this kind of stuff. It looks like this:

[Mon Nov 03 20:01:20 2014] [client] File does not exist: /home/wwwmonroes/public_html/404.shtml, referer:
[Mon Nov 03 20:01:20 2014] [client] File does not exist: /home/wwwmonroes/public_html/images/fergus@2x.png, referer:
[Mon Nov 03 20:01:20 2014] [client] File does not exist: /home/wwwmonroes/public_html/404.shtml, referer:
[Mon Nov 03 20:01:20 2014] [client] File does not exist: /home/wwwmonroes/public_html/images/party@2x.png, referer:
[Mon Nov 03 20:01:20 2014] [client] File does not exist: /home/wwwmonroes/public_html/404.shtml, referer:
[Mon Nov 03 20:01:20 2014] [client] File does not exist: /home/wwwmonroes/public_html/images/gig@2x.png, referer: http://www.monroe
Paul CotterOwnerAsked:
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it's look like you have a wrong setting for url in your Joomla config file.
Check the real path (use FTP you will see the path name) I guess the real path is /home/monroes/public_html/images/
so check your config file and change the paths accordingly.

If the path is ok then add the missing files using FTP
Paul CotterOwnerAuthor Commented:
Hi lenamtl, I'm sorry, I dont really follow what you are saying. The config file is fine as far as I can see. Which path are you referring to? The 'images' path? I think the site is under Brute Force attack and people are trying to access files that no longer exist... Im not sure really...
This morning your website was not accessible so I thought that your config file was not well set.

Is the image name that are not found mean anything to you?
I checked with fergus@2x.png and it's give 404 error not found.
This can be a missing images from an article, when the page is viewed, if the image is not found this generate an error.

This occurred often during uploading the site files because Joomla having a lot of files and during the FTP transfer some files may be not transferred.

You can try to check with previous backups if the images folder contains the missing images and file this way you will know if it's your article image and put it back.

You can check in your website stats log and error log this way you can find out more on what happening.
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Paul CotterOwnerAuthor Commented:
Hi lenamtl, I spoke to template developer and he said its not a concern as it is just looking for Retina versions of the photos - he say it causes no harm - so Im still unsure
Have you put back online the missing files using FTP ?

When all the missing files will be online you will no longer having these errors:

File does not exist: /home/wwwmonroes/public_html/images/fergus@2x.png

 File does not exist: /home/wwwmonroes/public_html/images/party@2x.png

File does not exist: /home/wwwmonroes/public_html/images/gig@2x.png

File does not exist: /home/wwwmonroes/public_html/404.shtml

You may need to create those files, @2x.png is for retina high rez picture version.

Here some information about retina image:
The template using retina.js check the section
The easy and even more bandwidth-hungry way

Your website is very slow to load...
Paul CotterOwnerAuthor Commented:
I disabled the retina.js function altogether and site seams quicker (error log is small now) but bandwidth use is still massive :-(

It is faster now.

Always do a full script and database backup before the changes :)
You can uninstall unused template and disable all unused module.
Uninstall unused component.
Disable all feeds that are in Joomla demo data.

Of course this can be also related to the server (hardware), internet, hosting company....

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