Database Backup failed this time ...

Hi. I am using ZC 1.3.7.

The Database Backup Addon I instralled is:

Add-On: BACKUP_MYSQL Admin Tool v1.2.0.10a
Designed for: Zen Cart v1.2.x series and 1.3.0
Created by: DrByte

It has been working for a year or two without problem. However, today, when I tried to backup as usual (my last successful back up was done on 14 Mar 2009), it gave me the following error messages:

Result code: 127
0 => sh: mysqldump: command not found

ERROR: Could not locate the MYSQLDUMP backup utility. BACKUP FAILED.

This causes great concern to me. Please help.

Thanks,
Jeff

contact your host and see if they have done something with Mysql server .