There, Right after installing this plugin we are getting

Hi There,

Right after installing this plugin we are getting the following error – any idea what’s causing it or how to resolve. This error happens even if all plugins are deactivated.

Thank you

Warning: Unknown: open(/tmp/sess_71352f8658852a9447f6b79ab1c0f20e, O_RDWR) failed: Permission denied (13) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0