I suddenly can't join games anymore, thats the error im getting.

java.util.concurrent.CompletionException: error="access_denied", error_description="Error requesting access token."
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:279)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1764)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: error="access_denied", error_description="Error requesting access token."
at org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport.retrieveToken(OAuth2AccessTokenSupport.java:149)
at org.springframework.security.oauth2.client.token.grant.password.ResourceOwnerPasswordAccessTokenProvider.obtainAccessToken(ResourceOwnerPasswordAccessTokenProvider.java:52)
at org.springframework.security.oauth2.client.token.AccessTokenProviderChain.obtainNewAccessTokenInternal(AccessTokenProviderChain.java:152)
at org.springframework.security.oauth2.client.token.AccessTokenProviderChain.obtainAccessToken(AccessTokenProviderChain.java:125)
at org.springframework.security.oauth2.client.OAuth2RestTemplate.acquireAccessToken(OAuth2RestTemplate.java:225)
at org.springframework.security.oauth2.client.OAuth2RestTemplate.getAccessToken(OAuth2RestTemplate.java:177)
at org.springframework.security.oauth2.client.OAuth2RestTemplate.createRequest(OAuth2RestTemplate.java:109)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:771)
at org.springframework.security.oauth2.client.OAuth2RestTemplate.doExecute(OAuth2RestTemplate.java:132)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:710)
at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:333)
at com.faforever.client.api.FafApiAccessorImpl.getPage(FafApiAccessorImpl.java:765)
at com.faforever.client.api.FafApiAccessorImpl.getPage(FafApiAccessorImpl.java:732)
at com.faforever.client.api.FafApiAccessorImpl.getMany(FafApiAccessorImpl.java:722)
at com.faforever.client.api.FafApiAccessorImpl.getFeaturedMods(FafApiAccessorImpl.java:207)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.cache.interceptor.CacheInterceptor.lambda$invoke$0(CacheInterceptor.java:54)
at org.springframework.cache.interceptor.CacheAspectSupport.invokeOperation(CacheAspectSupport.java:366)
at org.springframework.cache.interceptor.CacheAspectSupport.lambda$handleSynchronizedGet$1(CacheAspectSupport.java:447)
at org.springframework.cache.caffeine.CaffeineCache$LoadFunction.apply(CaffeineCache.java:168)
at com.github.benmanes.caffeine.cache.UnboundedLocalCache.lambda$computeIfAbsent$2(UnboundedLocalCache.java:238)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1708)
at com.github.benmanes.caffeine.cache.UnboundedLocalCache.computeIfAbsent(UnboundedLocalCache.java:234)
at com.github.benmanes.caffeine.cache.LocalCache.computeIfAbsent(LocalCache.java:108)
at com.github.benmanes.caffeine.cache.LocalManualCache.get(LocalManualCache.java:62)
at org.springframework.cache.caffeine.CaffeineCache.get(CaffeineCache.java:90)
at org.springframework.cache.interceptor.CacheAspectSupport.handleSynchronizedGet(CacheAspectSupport.java:442)
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:382)
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:345)
at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:64)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
at com.sun.proxy.$Proxy74.getFeaturedMods(Unknown Source)
at com.faforever.client.remote.FafService.getFeaturedMods(FafService.java:283)
at com.faforever.client.remote.FafService$$FastClassBySpringCGLIB$$6c91c77e.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$doSubmit$3(AsyncExecutionAspectSupport.java:276)
... 4 more
Caused by: org.springframework.web.client.HttpServerErrorException$GatewayTimeout: 504 Gateway Timeout: [Gateway Timeout]
at org.springframework.web.client.HttpServerErrorException.create(HttpServerErrorException.java:116)
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:188)
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:125)
at org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport$AccessTokenErrorHandler.handleError(OAuth2AccessTokenSupport.java:250)
at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:818)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:776)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:731)
at org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport.retrieveToken(OAuth2AccessTokenSupport.java:141)
... 50 more

yes,just wait a bit,devs are working on it