When I am trying to login a user with the classic Backendless.UserService.login( login, password, responder ), I get this message now, so everything was going perfectly well until there is less than an hour :
None of the handlers were able to invoke the target service. The service may not be found:com.backendless.services.users.impl.UserServiceClientsProxy. Make sure exceptions are logged - check server log for details
I can’t either export project code from Backendless web console.