I found the bisq.spvchain file only in my BISQ backup archive, not in the current BISQ location. Anyway, I deleted it, but the same error is still ocurring.
I have bisq intalled on disk D:
I fount the archive in a backup in disk D: , but also in a file that was in C: (I don´t even know how it ended up there, it was inside an user/roaming file) I’ve deleted both, but it’s still not working
This is where Bisq directories are: Data directory - Bisq Wiki
For windows it must be: $home\AppData\Roaming\Bisq
Deleting the file in a backup won’t affect what happens on the directory data that your client is using.
are you using your own bitcoin node?
because if that’s the case, that means you cannot connect to it, and rather need to restore network provided bitcoin nodes, as described in troubleshooting section of Connecting to your own Bitcoin node - Bisq Wiki
I had btc node installed a while ago, but I’ve uninstalled it. (BISQ was working after that, and suddenly this error ocurred). May it be the problem? Is there anything I can do about the node?
I mean, i’ve uninstalled it, but maybe there’s something remaining there that is causing this bug
if you uninstalled the node, but didn’t explicitly tell bisq to use default nodes, this could cause the issue. This is why I suggest following the troubleshooting in the linked article to see if it solves anything.
As an alternative, you can try starting Bisq with a fresh data directory, by renaming the original data directory from Bisqto Bisq.ori and restarting the application, if you get a bitcoin connection there is a hacky way to restore your old data directory into the new one
Do you see a status of the missing blocks on the bottom left of Bisq? If you have not run Bisq for a while it needs to download each block. Should show a percentage of where it is up to, and even the block it is up to.