Error 502. Bad gateway.
The server acting as a gateway or proxy received a notification about unsuccessful intermediate operation. There may be two causes for this error:
- The server from which you want to download a file is overloaded while it has the front-end installed;
- Your proxy-server is overloaded and answers to the web-server in a long period of time.
Try to download later
Possibly the server works unreliably. Try to download the file later.
For more information on this error and the ways to correct it you can search on DM froum: