Error when loading restoration druids from the armory

I’m getting an error loading up any restoration druid from my account. I tried others in my guild and I can load up druids but when I switch their spec to resto I get the same error. Anyone else having this issue?

Can you give me the region/realm/name of the druid that won’t load?

Do you have a custom resto strategy from a long time ago active? I had some issues loading offspecs after the big gearing strategy update until I deleted the extremely outdated gearing strategies they were assigned.