It's below 5 seconds what is this shit?

That's not the problem, you set the end time after than the gif's lenght (like set it to end at 4th second while the gif is 3 seconds long

Wait I'm confused what

For example, here, I uploaded a video that's 1.8 seconds long but set the end time to 2. And its not that long, so it gives me an error. You have the same problem.

Ah I see