How to access VM backup out retention policy

I made a backup on 7 of July and after that day I turned off the VDP. The retention is of 30gg.

Now the 27th of August I cannot see any restore point. Noone backup was performed since July.

Is there a method to recover this outdated backup?? A row mode??

The space occupied in Disks are about 35% in line with 5 VM bacupped ma I cannot see any restore point.

Regars,

Graziano.