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Plesk shows HTTP Error 503. The service is unavailable: The identity of application pool PleskControlPanel is invalid




  • Avatar
    Twan Lommers


    I got this problem now.
    But i am already using it for 3 years in a row without any problems.
    How can this happen? 


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  • Avatar
    Maxim Krasikov

    Hi @Twan Lommers,

    Please contact Plesk support for the assistance: 

    Probably, some clues about the reported behavior can still be available on the server.

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