# Error 502 LEfSe **URL:** \ **Category:** Infrastructure and utilities\ **Created:** [December 12, 2023, 5:06pm UTC](https://forum.biobakery.org/t/error-502-lefse/6304 "2023-12-12T17:06:37Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![JJ75](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@JJ75](https://forum.biobakery.org/u/JJ75)\ **Post date:** [December 12, 2023, 5:06pm UTC](https://forum.biobakery.org/t/error-502-lefse/6304/1 "2023-12-12T17:06:37Z")
Hello, I am currently trying to run LEfSe on galaxy but the webpage but I get this error 502: The proxy server received an invalid response from an upstream server. The proxy server could not handle the request _[GET /root](http://galaxy.biobakery.org/root)_. Reason: **Error reading from remote server** Apache/2.4.10 (Debian) Server at [galaxy.biobakery.org](http://galaxy.biobakery.org) Port 80 I tried with different brwoser, I am well connected to the internet but I cannot acces LEfSe online. Does anybody know if this is temporary or not ? I am based in France. Many thanks in advance. Kind regards, ---
**Author:** ![mhartslief](https://avatars.discourse-cdn.com/v4/letter/m/96bed5/32.png) [@mhartslief](https://forum.biobakery.org/u/mhartslief)\ **Post date:** [December 14, 2023, 2:35am UTC](https://forum.biobakery.org/t/error-502-lefse/6304/2 "2023-12-14T02:35:25Z")
Hi there! I am also getting this same error - based in Canada. Hopefully it can be resolved soon. Thanks! ---
**Author:** ![sagunmaharjann](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/sagunmaharjann/32/168_2.png) [@sagunmaharjann](https://forum.biobakery.org/u/sagunmaharjann)\ **Post date:** [January 12, 2024, 5:09pm UTC](https://forum.biobakery.org/t/error-502-lefse/6304/3 "2024-01-12T17:09:59Z")
Hello @JJ75 and @mhartslief , Apologies for the inconvenience. We are currently working on resolving the issue as soon as possible. Regards, Sagun