Flutter/React Notifications not working App: Fix&Update

I had some update done to App recently and after the notifications do not work on the App.

The app which uses : flutter, dart, Backend: react, node, typescript and is available on Google Playstore and Apple App Store.

After the update the notifications system doesnt seem to work, so If you set an alert to sound if a checklist isn't completed no alert is received by the user. The same is for alerts if a temperature falls out of range.

1) GS App - fix alert notiifications fixed and sending alert on checklist settings. App uploaded to AppStore and playstore. Notification fixed and all using secure server so it connects to all WiFi and all users can connnect to app.

2) SF App - alert notifications working and users alerted on time. URL on sign up page fixed, the opening checklist button also needs to be restored as only bottom Half works again. Uploaded to AppStore and Playstore and Woking on secure server so works on all users WiFi.

Payment will be made after testing and both apps uploaded to Apple App Store and Playstore.