Hello Greetings

Frustrating! Don't worry, I'm here to help. Let's troubleshoot the issue together:

Possible Reasons

1. *Browser issues*: Try using a different browser or updating your current browser.

2. *PDF viewer*: Ensure you have a PDF viewer installed (e.g., Adobe Acrobat Reader).

3. *Download restrictions*: Check if the website has download restrictions or requires login credentials.

4. *Internet connectivity*: Verify your internet connection is stable.

Troubleshooting Steps

1. *Check the download link*: Ensure the link is correct and active.

2. *Clear browser cache*: Clear your browser's cache and cookies.

3. *Disable extensions*: Temporarily disable any browser extensions that might be interfering.

4. *Try a different device*: Attempt downloading on a different device or computer.

Alternative Solutions

1. *Contact support*: Reach out to the website's support team or administrator for assistance.

2. *Use a download manager*: Utilize a download manager software to help with the download process.

If none of these steps resolve the issue, please provide more details about the website and the mock test PDF you're trying to download. I'll do my best to help you troubleshoot!

Have a great day