Application Manager Web Page problem

Application Manager Web Page problem

In my case, Application Manager Web page always can not browser on ie, chrome, firefox....
but the services was normal, like as the send alert or monitor the client servers and the service status of "Applications Manager Managed" was show to started.
For solve this problem, we should restart the service - "Applications Manager Managed" or run the command - "shutdownApplicationsManager -force".
Is the problem case on the memory or CPU?

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