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I have manually installed XSIBACKUP-PRO_11.0.2 in ESXi 6.7. After extracting the zip file and changing permissions on the install file I get a message: "-sh: ./xsibackup: Operation not permitted"

I then extracted all the files to the installation directory and run ./xsibackup and I get the same message: "-sh: ./xsibackup: Operation not permitted"

Any help will be appreciated since I have only a 15 day license to evaluate XSIBackup.