Uploading files all depends on the limits set on your hosting account. On that upload page there should be a message saying something like
“You can upload a file up to 64MB”
If the number is smaller than your file size you will have problems.
If your hosting company has cPanel you can often change the settings yourself.
Click on Multi PHP ini editor
Scroll down.
The settings to change are
file_uploads change to enabled
post_max_size to 64M
upload_max_filesize to 64M
You may need to change max_input_time to say 600 to allow for slow upload speeds.
I always upload using an FTP program then the “Add Uploaded File” option š