Unable to create a backup via WP Toolkit extension on Plesk server:
PLESK_ERROR: Failed to back up site
Path is invalid
- The following error is shown on the attempt to create a ZIP archive for any file in Plesk > Domains > example.com > File Manager:
PLESK_ERROR: Unable to create the archive: Path is invalid
Malware file named
nul.XXXXXX0000.cer blocks the backup creation.
With Plesk debug mode enabled, the following errors are shown in the
DEBUG Starting: filemng sysuser file_exists C:Inetpubvhostsexample.comhttpdocsnul.IIBBYI5454.cer, stdin:
Error code: 0, stdout: <XmlError Error="Path is invalid." ErrorCode="path_is_invalid" ErrorDetails="The filename, directory name, or volume label syntax is incorrect. (Error code 123) at C:Inetpubvhostsexample.comhttpdocsnul.IIBBYI5454.cer: contains reserved device names that cannot be used as the name of a file. at (RunTime::File::validateFileName line 2042)"/>
Connect to the server via RDP and remove the malware file shown on the error message.
Note: Scan websites against malware using available tools: How to scan a website hosted in Plesk against malware