Not rendering a message

Hey guys, I've only started using c.ai about a month or two ago, so I don't yet know what to do exactly, and whether this is a normal problem that will sort itself out...

I made a bot to chat with, and had some complex lore written out there (I'd be sad to lose it) but today it doesn't seem to render a single message. All other bots are just fine, and so is the same bot if I select the "New chat" option. It's just the chat with the complex lore that isn't working.

Do you know any causes or solutions for this? I'd be sad to lose everything, since it seemed to be even quite good at remembering some past events spontaneously