I got a 413 Error when I tried to upload the zip file. Is there a way to install it without uploading (I tried the Upload Larger Plugins which produced a different error)
Welcome to our forum.
Please increase max upload sie on your site, please read this blog post, https://www.wpbeginner.com/wp-tutorials/how-to-increase-the-maximum-file-upload-size-in-wordpress/
you can also upload plugin file via FTP or cPanel file manager, let me know for more help.