Virtual Machine Errors (code 1905)

Hi,

i have a serious problem about backup of my Vmware Virtual machine, when i start backup, i have this message error :

unable to connect to server

or when i configure my backup it’s work i see all my virtual machine.

i see the kb in your documentation :

https://kb.msp360.com/standalone-backup/esxi-&-hyper-v/virtual-machine-errors

but i have no snapshot.

Can you help me ?