Go to your prints menu, if you have more than a dozen, start deleting them all.

After a handful (i think around 10), it'll say "Failed to delete".

I'm not sure why it is a problem, or why there's a cooldown, or why it doesn't say the actual reason, but considering how often I have to cycle my prints when sharing pictures i take in public events and all, it is a daily issue where i have to remember to take a min every handful of prints to delete old ones otherwise i run out of space and the next print i try to print just vanishes due to prints being full.

Not sure what the fix should be, but worth putting in a canny because it's a daily rant at this point for me