policy evaluation error

Caused by: java.lang.RuntimeException: Error evaluating JS Policy [User is resource owner].
    at org.keycloak.authorization.policy.provider.js.JSPolicyProvider.evaluate(JSPolicyProvider.java:56)
    at org.keycloak.authorization.policy.provider.permission.AbstractPermissionProvider.lambda$evaluate$1(AbstractPermissionProvider.java:51)
    at java.lang.Iterable.forEach(Iterable.java:75)
    at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
    at org.keycloak.authorization.policy.provider.permission.AbstractPermissionProvider.evaluate(AbstractPermissionProvider.java:43)
    at org.keycloak.authorization.policy.provider.permission.ResourcePolicyProvider.evaluate(ResourcePolicyProvider.java:47)
    at org.keycloak.authorization.policy.evaluation.DefaultPolicyEvaluator.lambda$createPolicyEvaluator$0(DefaultPolicyEvaluator.java:107)
    at org.keycloak.models.cache.infinispan.authorization.StoreFactoryCacheSession$PolicyCache.cacheQuery(StoreFactoryCacheSession.java:958)
    at org.keycloak.models.cache.infinispan.authorization.StoreFactoryCacheSession$PolicyCache.findByResourceType(StoreFactoryCacheSession.java:877)
    at org.keycloak.authorization.AuthorizationProvider$3.findByResourceType(AuthorizationProvider.java:425)
    at org.keycloak.authorization.policy.evaluation.DefaultPolicyEvaluator.evaluate(DefaultPolicyEvaluator.java:71)
    at org.keycloak.authorization.permission.evaluator.IterablePermissionEvaluator.evaluate(IterablePermissionEvaluator.java:59)
    ... 85 more
Caused by: java.lang.NullPointerException: Null keys are not supported!
    at java.util.Objects.requireNonNull(Objects.java:228)
    at org.infinispan.cache.impl.CacheImpl.assertKeyNotNull(CacheImpl.java:195)
    at org.infinispan.cache.impl.CacheImpl.get(CacheImpl.java:483)
    at org.infinispan.cache.impl.CacheImpl.get(CacheImpl.java:478)
    at org.infinispan.cache.impl.AbstractDelegatingCache.get(AbstractDelegatingCache.java:348)
    at org.infinispan.cache.impl.EncoderCache.get(EncoderCache.java:658)
    at org.infinispan.cache.impl.AbstractDelegatingCache.get(AbstractDelegatingCache.java:348)
    at org.keycloak.models.sessions.infinispan.changes.InfinispanChangelogBasedTransaction.get(InfinispanChangelogBasedTransaction.java:120)
    at org.keycloak.models.sessions.infinispan.InfinispanUserSessionProvider.getUserSessionEntity(InfinispanUserSessionProvider.java:240)
    at org.keycloak.models.sessions.infinispan.InfinispanUserSessionProvider.getUserSession(InfinispanUserSessionProvider.java:234)
    at org.keycloak.models.sessions.infinispan.InfinispanUserSessionProvider.getUserSession(InfinispanUserSessionProvider.java:230)
    at org.keycloak.authorization.common.KeycloakIdentity.getUserFromSessionState(KeycloakIdentity.java:263)
    at org.keycloak.authorization.common.KeycloakIdentity.getId(KeycloakIdentity.java:220)
    at jdk.nashorn.internal.scripts.Script$13$\^eval\_.:program(<eval>:4)
    at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:637)
    at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494)
    at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
    at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:421)
    at jdk.nashorn.api.scripting.NashornScriptEngine.access$300(NashornScriptEngine.java:73)
    at jdk.nashorn.api.scripting.NashornScriptEngine$3.eval(NashornScriptEngine.java:514)
    at org.keycloak.scripting.CompiledEvaluatableScriptAdapter.eval(CompiledEvaluatableScriptAdapter.java:45)
    at org.keycloak.authorization.policy.provider.js.JSPolicyProvider.evaluate(JSPolicyProvider.java:53)