Interesting to know why they implemented this limitation, I have a cluster registered to a Prism Central that has issues with MSP and I have to live with it on my Community Edition cluster as if I remove it like you have done I wont be able to re-add it to a Prism Central once rebuilt.

​@ndas create a support case and support will help you. 
 

​@PAspinall Because people are using ce for production (which is not where it is created for) and deleting/recreating pc will give them 90 days ultimate trial again. This limits that. (This I what I assume offcourse ;)) 

Hi ​@JeroenTielen, I understand why for limiting production use but in my case I will need to destroy my whole demo cluster which has all features enabled like Files / NDB / Containers and multiple VMs. If I could just get support to fix my PC issues then great but can’t log calls on CE. Just frustrating.

​@JeroenTielen  Are we eligible to get support for community edition?

Even I have tried to add these 2 clusters to another prism central but same error is showing.

No there isnt. For that there is the commercial version ;).