Cloud not load backend in Redis Cluster

hello, I am using RedisAi on Redis Cluster in Kubernetes.

but I am getting error in python.

redis.exceptions.ResponseError: Could not load backend

redisai_client.modelstore(key, 'onnx', device, model, tag=tag)

and when I using redis-cli, result was same.

redis-cli -c -x AI.MODELSTORE testmodel ONNX CPU BLOB < ./model/model.onnx

(error) ERR Could not load backend

I am using docker image of ‘bitnami/redis’ and loaded ‘’ module.

Other redisai-commands such as ‘tensorget’ and ‘tensorset’ work well.

How to fix it?