I don’t know if this is an actual fix, but it is something I noticed with jailbreaks.fun (if this is where you are downloading Unc0ver from). For the record, I’ve done this countless times now and t seems to work for me.
Step 1: Delete Unc0ver from your device.
Step 2: Go back to jailbreaks.fun
Step 3: Download the SECOND Unc0ver link. For some reason, the first one never works for me.
Step 4: Resign Unc0ver and rejailbreak.
If you are having issues with the actual jailbreak, I’ve had some bugs too where it doesn’t get past 1/31. Some things I’ve tried, that work randomly, is the following:
Otherwise, I went on to confirm some things, but it seems I can’t even open Unc0ver anymore because it needs an internet connection. I had wifi on, so I turned it off and tried data, but it still won’t work. So if this the issue you’re having, I have no idea what’s going on... it may just be that their servers are down?
Hopefully something in there helped!