I'll help you get rid of this error, CT58.
Usually, this error message occurs if the file is read incorrectly on a Windows computer. Make sure the user account you use to sign in to your server computer has Windows admin rights.
Once logged in as an admin, you can now update QuickBooks to the latest release or set up QuickBooks to automatically download the updates.
In case you'll encounter any update error, you can read this article to be guided in resolving it: Fix QuickBooks Desktop Update Errors.
Keep your posts coming if you need more help with updating your QuickBooks Desktop to the latest release. Have a great day!