URL too long 

Timeout error 

Couldn’t access destination folder 

Not enough disk space 

Not enough memory 

Canceled by user 

Unknown error 

Couldn’t Parse URL 

504 - Server Unavailable 

502 - Bad Gateway 

501 - Not Implemented 

500 - Internal Server Error 

404 - Not Found 

402 - Forbidden 

401 - Unauthorized 

400 - Bad Request 

Couldn’t redirect