Error: Can\'t bind to \'fixed\' since it isn\'t a known prop

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

import { BrowserModule } from '@angular/platform-browser';
import { NgModule, NO_ERRORS_SCHEMA} from '@angular/core';
import { MDBBootstrapModulesPro, MDBSpinningPreloader } from './../lib/ng-uikit-pro-standard';
import { SidenavModule, NavbarModule, WavesModule, AccordionModule } from './../lib/ng-uikit-pro-standard';
import { AppComponent } from './app.component';
import { FormsModule } from '@angular/forms';

import { ConfigService } from "./shared/services/config.services";
import {AuthService} from "./shared/services/auth.service";
import {AppRoutingModule} from "./app-routing.modules";
import {AuthModule} from "./auth/auth.module";
import {SystemModule} from "./system/system.module";
import {BaseApi} from "./shared/core/base-api";

@NgModule({
declarations: [
AppComponent,
],
imports: [
AppRoutingModule,
AuthModule,
SystemModule,
BrowserModule,
FormsModule,
MDBBootstrapModulesPro.forRoot(),
BrowserAnimationsModule
],
providers: [
MDBSpinningPreloader,
SidenavModule,
NavbarModule,
WavesModule,
AccordionModule,
ConfigService,
AuthService,
BaseApi,
],
bootstrap: [AppComponent],
schemas: [NO_ERRORS_SCHEMA]
})
export class AppModule { }