Seobility - A question

Site URL: https://www.robgolding.co.uk/fitness

Hi, 

A question if I may, I hope someone can help me here :)

I'm using Seobility to try and get my site sorted out, and it keeps telling me I am using too many H1 headings on my  portfolio pages. Because of this I keep getting a warning telling me to sort it out.

I'm using the Gravity template, and try as I might I cannot remove the 2nd H1 'Fitness' (in this instance) heading. I've tried the simple thing of leaving that heading blank but it keeps coming back.

I found this link (below) but none of the coding works when I put it in to the Page Header Code Injection in my gallery settings.

The below is what I get on my Seobility results.
 

Does anyone have an idea how I can get around this? I did read in the thread above that it can safely be ignored but seeing it listed as a problem on the Seobility site constantly is beginning to grind my gears, so I'd be very grateful.

Thanks, Rob :)