PowerStore CSI: "rpc error: code = Internal desc = could not get iscsiTargets: can't get iscsi target address"

I want to use powerstore csi in OCP 4.6. After the installation of operator, csi-powerstore driver and storage class, I could successfully create a volume in powerstore by creating a pvc in OCP. However, when I mounted the pvc to a pod, it turned out to be error. The pod remained in 'ContainerCreating'. According to the event log, it seems that the iscsi target cannot be found, but I preferred to use the FC initiator and the zoning of the HBAs to the FC port was already done. Besides, I also defined the blockprotocol to be FC in the powerstore-config secret. The logs are as follows. I hope someone can solve my problem. Thanks a lot.

Test pod event log:

AttachVolume.Attach failed for volume "csi-pstore-167d09d5dd" : rpc error: code = Internal desc = could not get iscsiTargets: can't get iscsi target address

Powerstore Controller log:

{"level":"error","msg":"can't get iscsi target address","time":"2021-09-17T07:39:38.131491812Z"} {"level":"debug","msg":"/csi.v1.Controller/ControllerPublishVolume: REP 0544: rpc error: code = Internal desc = could not get iscsiTargets: can't get iscsi target address","time":"2021-09-17T07:39:38.131526126Z"} handleServer method: /csi.v1.Controller/ControllerPublishVolume