What are you using as a backup target for this computer? If it's a local backup, where did you create the local storage account - was it on the MBS management console or through the agent on the local PC? If it was created locally, then try creating a new local target in the management console and then try the save again using that storage target. If this does not apply, what can you tell us about your configuration? Do you have other Linux endpoints that are working correctly or is this the only Linux machine? Any details would help.

Hi David.
It's a Cloud VM on Azure. I have 4 other Linux VMs working fine. The problem is just on this last one that I added.

I downloaded the agent and used the bash script installationt provided by mspbackup.com
After that, I accessed the console and I tried to create de backup plan. Here is the problem, I can't create, because It does not save the plan and the pages refreshes.

I'll keep checking at my end, but I recommend you open a support case immediately for assistance from our support team.