apigateway couldn't display swagger-ui documentations with spring boot 3 - spring

Question

I'm building microservices project using spring boot 3 and I have found some problems from api gateway.
when I type each service port I get swagger ui documentation but when I try access it's documentation from api the gateway I get this error "Failed to load remote configuration."
here is my springdoc config for
api-gatway :
<!-- Swagger documentation Dependencies -->
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-common</artifactId>
<version>3.0.0</version>
<scope>compile</scope>
</dependency>
gateway config:
#Configuration
#Primary
public class SwaggerConfig {
public static final String API_URI = "/v3/api-docs";
private final RouteDefinitionLocator routeLocator;
public SwaggerConfig(RouteDefinitionLocator routeLocator) {
this.routeLocator = routeLocator;
}
private SwaggerResource swaggerResource(String name, String location) {
SwaggerResource swaggerResource = new SwaggerResource();
swaggerResource.setName(name);
swaggerResource.setLocation(location);
swaggerResource.setSwaggerVersion("1.0");
return swaggerResource;
}
}
gateway routing :
#Bean
DiscoveryClientRouteDefinitionLocator dynamicRoutes(ReactiveDiscoveryClient rdc, DiscoveryLocatorProperties dlp){
return new DiscoveryClientRouteDefinitionLocator(rdc,dlp);
}
backend services :
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-ui</artifactId>
<version>1.6.9</version>
</dependency>
expecting : enter image description here
but what i get
enter image description here
enter image description here