THis is from github:
4. Create a second user on entry named System ensure its userid2 so you dont need to alter the autoshout function on include/user_functions.php. 5. Sysop is added automatically to the array in cache/staff_settings.php and cache/staff_setting2.php. 6. Staff is automatically added to the same 2 files, but you have to make sure the member is offline before you promote them.If you set it up properly you shouldn't get these errors. Check your staff_settings and staff_settings2 site settings and ensure you have properly chmodded your appropriate folders. Follow the instructions on github and you should have no issues
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