Authentication error when importing BrowserAnimationsModule

When I import ‘BrowserAnimationsModule’ into app.module, this error appears in the browser console:

ERROR Error: Uncaught (in promise): Error: An error happened during access validation. Details:TypeError: Cannot read properties of undefined (reading ‘resourceAccess’)
Error: An error happened during access validation. Details:TypeError: Cannot read properties of undefined (reading ‘resourceAccess’)
at keycloak-angular.mjs:33:19
at Generator.next ()
at asyncGeneratorStep (asyncToGenerator.js:3:1)
at _next (asyncToGenerator.js:22:1)
at _ZoneDelegate.invoke (zone.js:375:26)
at Object.onInvoke (core.mjs:24260:33)
at _ZoneDelegate.invoke (zone.js:374:52)
at Zone.run (zone.js:134:43)
at zone.js:1278:36
at _ZoneDelegate.invokeTask (zone.js:409:31)
at resolvePromise (zone.js:1214:31)
at resolvePromise (zone.js:1168:17)
at zone.js:1281:17
at _ZoneDelegate.invokeTask (zone.js:409:31)
at core.mjs:23946:55
at AsyncStackTaggingZoneSpec.onInvokeTask (core.mjs:23946:36)
at _ZoneDelegate.invokeTask (zone.js:408:60)
at Object.onInvokeTask (core.mjs:24247:33)
at _ZoneDelegate.invokeTask (zone.js:408:60)
at Zone.runTask (zone.js:178:47)

I am using Angular CLI: 15.2.4, @angular/material": “^15.2.5”, Keycloak 18.0.2.

Why does this error appear? Please help