Can't take backup

i have installed erpnext on my server but can not find the datbase back up also not able to take backup from workbench…any one who has a solution for this please help us…it says workbench cannt read maria db 10.0…

You will find backup under frappe-bench/sites/[your_site_name]/private/backup/file.sql.gz

if backup is not there you can take backup manually by using, bench backup site_name