Plesk for Windows Plesk for Linux kb: technical
The following error appears from time to time on random pages in Plesk including the Plesk login page:
NetworkError when attempting to fetch resource
Failed to fetch
The stack trace output in errors may vary.
Unstable network connection leads to the error message on Plesk side. This behavior is planned to be improved in the scope of PPP-59897.
As a workaround refresh the page in question.
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