If you are using Linux Shared Hosting, you must install this hotfix before upgrading to Odin Automation 7.1. It is a mandatory part of the 7.1 upgrade procedure.
You can download this hotfix here.
To install this hotfix, use the pa_updates_installer tool as described in the KB111323 article. Note that this hotfix is installed automatically when you upgrade to Odin Automation 7.0.1 using the pa_updates_installer tool.