Issue with uploading images

How do I upload pictures over here? I tried uploading a screenshot supporting my kick enquiry but it didn't work. Are there any specifications on how one must upload media on this site?
 
View attachment 3190depending if you're on mobile or pc. I think pc you can copy and paste screenshots onto it (not sure) and with mobile it looks a bit like the screenshot I've attached. When you click on it, it gives you the option to go onto your gallery
 
View attachment 3190depending if you're on mobile or pc. I think pc you can copy and paste screenshots onto it (not sure) and with mobile it looks a bit like the screenshot I've attached. When you click on it, it gives you the option to go onto your gallery
It only shows me the link option, it doesn't show me the first option when I click on that icon.
 
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