"[esri.WebMap] #load() Failed to load web map - ArcGIS javascript API"

Question

I am using a webmap for one of my website. The problem is, sometimes the map is loading fne but sometimes the map failes to load leaving a console error

[esri.WebMap] #load() Failed to load web map

require(["esri/WebMap", "esri/views/MapView", "esri/widgets/Search", "esri/widgets/Zoom", "esri/widgets/Locate", "esri/popup/content/ImageMediaInfo", "esri/config", "esri/portal/Portal"], function (WebMap, MapView, Search, Zoom, Locate, ImageMediaInfo, esriConfig, Portal) {
    esriConfig.portalUrl = "https://test.org/portal";

    webmap = new WebMap({
        portalItem: {
            id: "*********",
        },
    });

   
    var view = new MapView({
        map: webmap,
        container: "viewDiv",
        center: [-95.9406, 41.26],
        zoom: 13,
        
        basemap: "topo",
        constraints: {
            minZoom: 12,
           
        },
    });
    // webmap.loadStatus
    view.when(function () {
        webmap
            .load()
            .then(function () {
                
                return webmap.basemap.load();
            })
            .then(function () {
                
                let allLayers = webmap.allLayers;
                

                var promises = allLayers.map(function (layer) {
                    return layer.load();
                });
                return Promise.all(promises.toArray());
            })
            .then(function (layers) {
                webmap.removeAll();

                

                
            })
            .catch(function (error) {
                // the webmap or portal failed to load
                console.log("The resource failed to load: ", error);
            });
    });
});

Sometimes the map is not working because poor gis server?

These are the other console errors i get when I run the script.

WebGL warning: drawArraysInstanced: Tex image TEXTURE_2D level 0 is incurring lazy initialization.

w {name: 'worker:port-closed', details: {…}, message: "Cannot call invoke('setUpdating'), port is closed"}

Object { name: "AbortError", details: undefined, message: "Aborted" }

"Cannot call invoke('eventLog.onEvent'), port is closed"

"Worker closing, aborting job calling 'updateSubscriptions'"

f {name: 'AbortError', details: undefined, message: "Worker closing, aborting job calling 'updateSubscriptions'"}

#load() Failed to load basemap (title: 'Community Map', id: '18e1c54bd14-basemap-3') TypeError: K is not a function

net::ERR_NAME_NOT_RESOLVED