When adding Interwiki, I get "Could not add prefix 'xxx' to Interwiki table. It may already exist in the interwiki table" and cannot be added. I checked and couldn't find an interwiki with the same name.
When adding Interwiki, I get "Could not add prefix 'xxx' to Interwiki table. It may already exist in the interwiki table" and cannot be added. I checked and couldn't find an interwiki with the same name.