zip download incomplete

Hi, I love this plugin
but Im having issues with files bigger than 58 mgb
the download file shows 156mgb on the link to download but it only downloads a 58mb zip file.
please help

this is the error on the server
test here:
http://www.santamuerte.ec/test-download/
use one of the codes

SSYDht6AX5
SSyNmnZP6Y
SSZ5K8wD02
SSzvq8i3Lx
SSZYn2pNKW

error here displayed on server:
Notice: Use of undefined constant DC_MAX_ATTEMPTS - assumed 'DC_MAX_ATTEMPTS' in /hermes/waloraweb055/b1774/moo.homovidenslabcom/santamuerte/wp-content/plugins/wp-download-codes/wp-download-codes.php on line 32 Notice: Use of undefined constant DC_ALLOWED_DOWNLOADS - assumed 'DC_ALLOWED_DOWNLOADS' in /hermes/waloraweb055/b1774/moo.homovidenslabcom/santamuerte/wp-content/plugins/wp-download-codes/wp-download-codes.php on line 33 Notice: Use of undefined constant DC_FILE_TYPES - assumed 'DC_FILE_TYPES' in /hermes/waloraweb055/b1774/moo.homovidenslabcom/santamuerte/wp-content/plugins/wp-download-codes/wp-download-codes.php on line 34 Notice: Use of undefined constant DC_CODE_CHARS - assumed 'DC_CODE_CHARS' in /hermes/waloraweb055/b1774/moo.homovidenslabcom/santamuerte/wp-content/plugins/wp-download-codes/wp-download-codes.php on line 35 Notice: Use of undefined constant DC_HEADER_CONTENT_TYPE - assumed 'DC_HEADER_CONTENT_TYPE' in /hermes/waloraweb055/b1774/moo.homovidenslabcom/santamuerte/wp-content/plugins/wp-download-codes/wp-download-codes.php on line 36

https://wordpress.org/plugins/wp-download-codes/