Error when Uploading

Hello,

I recently downloaded the Big File Uploads plugin and set the file size limit to 35 GB. However, every time I try to upload something larger than the previous 2 MB limit, I receive the following error:

BAPI_Catalog_2022_Full_Web.pdf
Unexpected response from the server. The file may have been uploaded successfully. Check in the Media Library or reload the page.

Any advice on how to fix the issue?

Thank you.