Hello, I have noticed that the photographs I uploaded in a post and the background photo on my blog do not appear on my mobile device. When I press on the image on my phone it says that the file is not found. I have tried to fix it myself, and have read that I need to disable the plugins or optimise the CSS delivery but I am a bit lost as to how I can actually do this. I am using the 'singl' theme. Any help would be greatly appreciated, thank you!
The blog I need help with is londonkiezkunst.wordpress.com.