Messenger pop up notification not showing

[MrShihab]

Shows as pop up

I keep turning it on but it keeps turning off automatically. Why is this happening? Please give me solution.

My device Samsung A24 

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern, we would request you to kindly perform the following steps to resolve your issue.

Clear app cache through Device care:
Settings > Device care > Storage > CLEAN NOW.

The clear cache memory of a particular application:
Settings > Apps > Now pick the app you like to clear off the cache memory > Storage > Clear Cache.

Reset the device Settings: Settings > General Management > Reset settings>Reset all settings to their default.

Kindly try to enable settings once again.

Keep your app updated: Tap on Google Play Store app or Galaxy Store> Manage apps & device> Apps available to update> If you want to update apps individually, tap See details and then tap the Update button next to the app you would like to update.
Note: kindly contact the particular application helpline once, to make sure there is no issue from their end.

In case the issue still occurs, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Warm Regards,
Samsung Customer Support