# Unable to login grafana 4.5.2 showing Unexpected error

**URL:** <https://community.grafana.com/t/unable-to-login-grafana-4-5-2-showing-unexpected-error/4591>\
**Category:** General\
**Created:** [January 2, 2018, 6:30am UTC](https://community.grafana.com/t/unable-to-login-grafana-4-5-2-showing-unexpected-error/4591 "2018-01-02T06:30:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![manik](https://avatars.discourse-cdn.com/v4/letter/m/c37758/32.png) [@manik](https://community.grafana.com/u/manik)\
**Post date:** [January 2, 2018, 6:30am UTC](https://community.grafana.com/t/unable-to-login-grafana-4-5-2-showing-unexpected-error/4591/1 "2018-01-02T06:30:00Z")

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I am using grafana 4.5.2 from last 4 month. until today it works fine but now i am not able to login in grafana showing unexpected error. Then i tried to access it using API call and they worked.  
Can anyone give solution on this problem?

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**Author:** ![torkel](https://sea2.discourse-cdn.com/grafana/user_avatar/community.grafana.com/torkel/32/20_2.png) [@torkel](https://community.grafana.com/u/torkel)\
**Post date:** [January 3, 2018, 7:34pm UTC](https://community.grafana.com/t/unable-to-login-grafana-4-5-2-showing-unexpected-error/4591/2 "2018-01-03T19:34:37Z")

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can you check grafana-server log? usually located at /var/log/grafana/grafana.log

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**Author:** ![manik](https://avatars.discourse-cdn.com/v4/letter/m/c37758/32.png) [@manik](https://community.grafana.com/u/manik)\
**Post date:** [January 8, 2018, 10:51am UTC](https://community.grafana.com/t/unable-to-login-grafana-4-5-2-showing-unexpected-error/4591/3 "2018-01-08T10:51:04Z")

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Problem is solved now,there is no space left in /var so because of it this error occured

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**Author:** ![anon80964540](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@anon80964540](https://community.grafana.com/u/anon80964540)\
**Post date:** [January 13, 2021, 4:39pm UTC](https://community.grafana.com/t/unable-to-login-grafana-4-5-2-showing-unexpected-error/4591/4 "2021-01-13T16:39:47Z")

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