iOS Question Firebase notifications not working anymore

Hi
ive been using it for quite a while now everything is fine
but recently it stopped working i didnt changed the code or updated the app just stopped by itself
heres the b4i log

Code:

Application_Start
Configuring the default app.
<Google> To get test ads on this device, call: request.testDevices = @[ @"7223c1372a3dcc10f36b3080d13e3442" ];
Application_Active
FCMConnected
Application_Pushtoken
PushToken: 1
<B4IExceptionWrapper: (null)>
Application_Pushtoken
PushToken: 1
<B4IExceptionWrapper: (null)>
ResponseError: unknown error, status code: 404
Class (b4i_httpjob) instance released.
response success
Class (b4i_httpjob) instance released.
<Google:HTML> You are currently using version 7.31.0 of the SDK. Please consider updating your SDK to the most recent SDK version to get the latest features and bug fixes. The latest SDK can be downloaded from https://goo.gl/UoiJ8F. A full list of release notes is available at https://developers.google.com/admob/ios/rel-notes.
Application_Inactive
Application_Background

and the b4j log

Code:

[jobname=fcm, success=true, username=
, password=, errormessage=, target=class b4j.example.main
, taskid=1, req=anywheresoftware.b4h.okhttp.OkHttpClientWrapper$OkHttpRequest@5577140b, response=anywheresoftware.b4h.okhttp.OkHttpClientWrapper$OkHttpResponse@1c6b6478
, tag=java.lang.Object@67f89fa3, main=null, httputils2service=null
]
{"message_id":5274923214232077394}

 

Dont think so its about 3-4 months old

 

ok i will implement it all over again and see

 

i tried to do so but still not working ... some users are getting the notification but other dosent including me that is weird