"already indexed" during Self registration of validators

I'm trying to add new validators to operator and I'm facing issues.

Some of requests are returning errors:


curl https://api.rated.network/v0/selfReports/validators -v -H 'Content-Type: application/json' -H 'X-Rated-Network: mainnet' -H 'Authorization: Bearer REDACTED' -d '{"poolTag":"", "validators": ["0x9688b8888db8cca0cb6404a26ee8a089d2825cb5eba51cad1e3b1d66d99683dc769ce37df4e8b5c0c1bf9b778c92e346"]}'


Response:

{"detail":[{"loc":["body","validators"],"msg":"0x9688b8888db8cca0cb6404a26ee8a089d2825cb5eba51cad1e3b1d66d99683dc769ce37df4e8b5c0c1bf9b778c92e346 already indexed.","type":"value_error"}]}


What should I fix?