I have a customer with a call pilot 150 that looses all programming on reboot/Back up

I am assuming that the memory gets store on the software cartridge

It was acting kinda o weird prior to the reboot 3 mailboxes were having issue logging on to their voice mails it would say can not continue so I deleted them but it would not let me add them back

I am wondering if this would a matter of just replacing the software cartridge