From what could gather, Nijimiss is a federated platform, so maybe there's an issue with the integration with it, if there's any?
Or perhaps one of the two defederated from the other? If that's the case, then I couldn't find anything about it.
Also dunno if it's relevant, but both without a VPN, being in Brazil, and with a VPN set to Japan, I can access the Nijimiss site, but apparently can't access when the VPN is set to European countries, having tried Norway, Spain, Portugal, Poland and lastly Albania to test if it wasn't an issue with EU countries specifically, no dice in any from Europe.
You mean Nijimiss? I'm running the searches for that within Kbin Social, and not the opposite, and tinkering with the VPN, Kbin doesn't seem to have problems with EU IPs (isn't it from Poland? I have the impression I read something on that previously).
yes, i mean the Nijimiss site is actively blocking european IPs, which would include requests coming from kbin.social, and might be the root of your 500 errors. i noticed lemmy.world (finland) also cant make those requests to nijimiss.moe successfully.
my instance is not in europe, so it seems like it can make those requests without error.