Cannot change placeholder image from theme

Hello all,

It seems that I have been unable to change the placeholder image to a template (link at very bottom) I had purchased recently. The name of the template is “H-Code Multipurpose OnePage & Multi Page Template

Anyway, the code line that controls the placeholder image is:

however when I change it to below code:

the index.html file opens with a grey background with no image (see link) …

anyway, I’m stuck as I’ve tried diffferent variations of image formats, and even moved the image online and referenced it from there. However I arrive at the same result. Can any of you experienced guys see any error I’m making? Please pardon me in advance if its a newbie mistake :confused:

Link to template:

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