Facebook Notifications is not close. I have XPERIA XA1 ULTRA ANDROID 8.0 OREO

[By_FiRaRi]

Facebook Notifications is not close. The notification above the Facebook icon appears to have 4 notifications continuously. How can I fix this?

[Uliwooly]

@By_FiRaRi

What if you go to settings > apps > app info > facebook > storage > clear data > open FB > log in 

[MarlonUk1]

also try to long tap fb icon>app info>app notifications>try to turn off and on the toggles.