SMVI 4.2.1 Unable to list backup jobs in vSphere Client

[nvaes]

hello,
after having edited a backup jobs,

I can no longer get a list of backup jobs in the vSphere console

Here's what I've already done:

server reboot
SMVI restart services

Restoration work properly and backup jobs continue to run

Thank you for your help

vSphere 5.1

SMVI 4.2.1