Hello,
Without the logs and based on the error messages, and since the issue is intermittent. I would double check the below:
- account used for SC services has admin rights.
- Vserver (SVM) are added within Snapcenter.
- Re-enter the credentials for the Plugin within Snapcenter (push the credentials).
- Update the SnapCenter Plugin for VMware interface in the vSphere Web Client plugin with an account that has SnapCenter Admin privileges
Below also some Knowledge base article that has been created for a similar issue but with a previous version of SC that might help resolve your issue:
Thanks