Powerstore 500T Node Enabled state has changed. (user_disabled) 0x00304302

In a Powerstore500T we are getting the below error.

Event Code 0x00304302

Node Enabled state has changed. (user disabled)

This started appearing automatically.

In the Hardware view, i can see that IPModule1 of Node A is having an Amber collected  "-" symbol displayed over it. This is a blank module.

Any idea why this might have occurred. There is only one Powerstore500T in our environment.