AVAMAR Failed to configure certificate on DD systema

Hi every one.

 Hi every one,  i need help , nealry  3 day ago our local avamar  suddently stop backingup all the VM .

At this time  No clue how to solvit, first time we saw this problem.

Error: 31050 and 31062

Vcenter: Ok.

DD : OK

 We cant open a ticket with dell  (support contract expired)

Thanks in advance.