Facebook notification does not work

[Xgamerps]

i have a problem with my xperia XZ premium that facebook application does not get any notifiation like (Comments or mentions or likes my post ) when i open application l find all of them i've try to disable the application many time and use other luanchers all this are doesn't work

plz help 

[najodleglejszy]

@Xgamerps since it's a third party app, you should probably contact Facebook support and let them know about your issue.