# 500 as response when hitting an api

**URL:** <https://discuss.konghq.com/t/500-as-response-when-hitting-an-api/1388>\
**Category:** Questions\
**Created:** [July 5, 2018, 10:44am UTC](https://discuss.konghq.com/t/500-as-response-when-hitting-an-api/1388 "2018-07-05T10:44:06Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![divya\_mittal](https://avatars.discourse-cdn.com/v4/letter/d/ad7895/32.png) [@divya\_mittal](https://discuss.konghq.com/u/divya_mittal)\
**Post date:** [July 5, 2018, 10:44am UTC](https://discuss.konghq.com/t/500-as-response-when-hitting-an-api/1388/1 "2018-07-05T10:44:06Z")

</div>

I have added an api in kong-EE but I am getting following error-

2018/07/05 16:12:33 [error] 62940#0: \*5520 lua entry thread aborted: runtime error: /usr/local/share/lua/5.1/kong/core/plugins\_iterator.lua:63: attempt to index field ‘cache’ (a nil value)  
stack traceback:  
coroutine 0:  
/usr/local/share/lua/5.1/kong/core/plugins\_iterator.lua: in function ‘load\_plugin\_configuration’  
/usr/local/share/lua/5.1/kong/core/plugins\_iterator.lua:202: in function ‘(for generator)’  
/usr/local/share/lua/5.1/kong/init.lua:441: in function ‘rewrite’  
rewrite\_by\_lua(nginx-kong.conf:92):2: in function \<rewrite\_by\_lua(nginx-kong.conf:92):1\>, client: 127.0.0.1, server: kong, request: “GET / HTTP/1.1”, host: “[example.com](http://example.com)”