Unknown graphic element 
Autor: Adrian B.
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I'm using semrush to optimize a site authored in X5 pro.
It has identified an image without an alt tag defined.
It has the location identified as https://www.abthermal.com/pluginAppObj/pluginAppObj_731_17/01.png
The image is nothing that I have added (see attached file).
Can I just delete the file on my server? (have to see if it republished on the next site update)
Adrian
Publicado en
Adrian, I would simply delete it (or move it elsewhere). If it is part of a plug-in/optional object you are using it will be reloaded next full export to the web. If you move it and there is an adverse reaction you can always put it back.