Notification don't go away

[squaredsquared]

Settings -> export data - “Data export request successfully created” alert should automatically go away after a few seconds. I read some solution but it does not work on my end

I use:
Buddy Press Version 5.1.2

I got this like notice, I would like to know how to make it disappear after 5seconds

Thank you.

This is the link to the image for this:
​https://imgur.com/2Ppkulh

[squaredsquared]

Notification that does not disappear