angular/angularfire2

Hello,
I'm trying to update an app and a home made library from angular 8.2 to angular 11.x.
My lib is in charge of authentication management which is based on Firebase Authentication.
Then I import this lib in my AppModule to manage the auth part, but I also use AngularFireDatabaseModule in this app.

Here is the app.module.ts

import { HTTP_INTERCEPTORS, HttpClient, HttpClientModule } from '@angular/common/http';
import { NgModule } from '@angular/core';
import { AngularFireModule } from '@angular/fire';
import { AngularFireAuthModule } from '@angular/fire/auth';
import { AngularFireDatabaseModule } from '@angular/fire/database';
import { BrowserModule, BrowserTransferStateModule, Title } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { LibCoreModule, ConfigService } from 'my-lib';
import { get } from 'lodash';
import { IntercomModule } from 'ng-intercom';

import { environment } from '../environments/environment';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { APP_CONFIG, APP_DI_CONFIG } from './app.config';
import { CgvModule } from './cgv';
import { CoreModule } from './core';
import { BrowserStateInterceptor } from './core/browserstate.interceptor';
import { CourseStatusResolver } from './core/service';
import { NotFoundComponent } from './not-found/not-found.component';
import { SharedModule } from './shared';
import { UrlRewritingComponent } from './url-rewriting/url-rewriting.component';


@NgModule({
  declarations: [AppComponent, UrlRewritingComponent, NotFoundComponent],
  imports: [
    AppRoutingModule,
    HttpClientModule,
    BrowserTransferStateModule,
    LibCoreModule.forRoot({
      apiBase: environment.apiBase,
      apiUrl: environment.apiUrl,
      apiVersion: environment.apiVersion,
      byPassAuth: false,
      configUrl: `${environment.apiUrl}/${environment.apiBase}/${environment.apiVersion}/config`,
      constantUrl: null,
      ssrMock: environment.ssrMock,
      error: {
        '401Redirect': null,
        '502Redirect': null
      }
    }),
    AngularFireModule.initializeApp(environment.firebase),
    AngularFireDatabaseModule,
    BrowserAnimationsModule,
    BrowserModule.withServerTransition({ appId: 'my-app' }),
    CgvModule,
    CoreModule,
    SharedModule,
    IntercomModule.forRoot({
      appId: environment.intercom, // from your Intercom config
      updateOnRouterChange: true, // will automatically run `update` on router event changes. Default: `false`
      alignment: 'right'
    })
  ],
  providers: [
    Title,
    {
      provide: APP_CONFIG,
      useValue: APP_DI_CONFIG
    },
    {
      provide: HTTP_INTERCEPTORS,
      useClass: BrowserStateInterceptor,
      multi: true
    },
    CourseStatusResolver,
    BrowserTransferStateModule
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}