Hi Camilor,
As you are experiencing issue in downloading file, please try this link: Adobe - Adobe Acrobat Reader DC Distribution
Check if you can download the installer file without any issue.
If you still experience the issue, please provide us the OS version you are working on.
Also, share the screenshot of the exact error message you get when you try to download the file.
To add the screenshot here, please use the insert icon provided on the reply window as shown below:

Once you click on this icon, you get a small window.
Click on Insert Image and then browse the location where you have saved the screenshot file.
Select the file and click on Open > Insert Image.
Let us know if you have any questions or need any help.
Regards,
Meenakshi