Gif: "Error exporting from Photoshop 60fps save for web."

I've been learning how to do a cinemagraph before, but the footage that I had was a little shakey but I had no issues exporting and stuff, but I keep having this issue every time I shoot with 60fps and slow down the footage.I edited the video in premier pro with a sequence resolution to match landscape resolution on Instagram and the sequence has 60fps (btw I'm still learning premier pro and still get a little confused with how all these numbers can be related sometimes) Then I opened it with photoshop and when I try to export it, it just tells me unknown error when I save for web as a gif. Is this because it's 60fps? Because of it's size? (the sequence aspect ratio in premier is 1.91:1). Does it matter that I have a slowed down the footage? It's a smoke grenade footage, so it looks smoother when it's slowed down. via /r/Cinemagraphs https://www.reddit.com/r/Cinemagraphs/comments/62z9wr/error_exporting_from_photoshop_60fps_save_for_web/?utm_source=ifttt