Hi there. I can share troubleshooting steps to help you eliminate this error when copying your data to a new company file in QuickBooks Desktop (QBDT).

There are several possible reasons for this issue. Some examples include a new file exceeding 3MB in size, a corrupted QuickBooks installation, attempting to restore a portable file from a damaged folder, or performing the restoration over a network.

We can start fixing this by updating the program to the latest release. You can manually download it from the internet:

1. Go to the Downloads & Updates page.
2. From the Select Product drop-down, select your QuickBooks product.
3. In the Select Version drop-down, choose the appropriate version or year.
4. Pick Search.
5. Choose Get the latest updates, then Save/Save file to download the update.

When the download completes, double-click to install the update. Then, restart your computer, re-open QuickBooks, and open the new file. 

If the error persists, transfer the company file to another folder, then re-open the file from the new location. 

Here's how:

1. Open the folder where the Portable file is saved.
2. Right-click the file and select Copy.
3. Open your C: drive, create a new folder and name it QBTest.
4. Paste the Portable file into the new folder.

After doing so, open a QBtest folder and restore the file from there:

1. While holding down the Ctrl key, open QuickBooks so you are directed to the No Company Open window.
2. Select Open or restore an existing company.
3. Navigate to the QBTest folder. Find the company file you copied and open.

See this article for more details: Fix Error in reload.sql in QuickBooks for Windows

To learn more about having a new file with the information from an existing file, here's a resource that you can read: Start a new company file with data from your existing file.

Let me know how things go after performing the steps above. I want to make sure this is taken care of for you. Have a good one.