# URGENT: how to debug a broken rack

**URL:** <https://community.convox.com/t/urgent-how-to-debug-a-broken-rack/544>\
**Category:** Rack (Version 2)\
**Created:** [May 28, 2019, 10:10pm UTC](https://community.convox.com/t/urgent-how-to-debug-a-broken-rack/544 "2019-05-28T22:10:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![stefano](https://yyz1.discourse-cdn.com/flex029/user_avatar/community.convox.com/stefano/32/13_2.png) [@stefano](https://community.convox.com/u/stefano)\
**Post date:** [May 28, 2019, 10:10pm UTC](https://community.convox.com/t/urgent-how-to-debug-a-broken-rack/544/1 "2019-05-28T22:10:30Z")

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We have a production rack that is misbehaving and we can’t even do “convox login” anymore. It gives ERROR: invalid login. We don’t use console, we log straight into the rack, and it’s always worked

How do I go about debugging the issue?

The only thing we’ve noticed so far is that there are 50+ EC2 instances, when there are supposed to be only 6.

Please advice!  
Stefano