# Tutor k8s severe error sometime **URL:** \ **Category:** Site Operations Help\ **Tags:** tutor\ **Created:** [December 13, 2023, 7:25am UTC](https://discuss.openedx.org/t/tutor-k8s-severe-error-sometime/11914 "2023-12-13T07:25:03Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Anh\_Vu\_Nguy\_n](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.openedx.org/anh_vu_nguy_n/32/1740_2.png) [@Anh\_Vu\_Nguy\_n](https://discuss.openedx.org/u/Anh_Vu_Nguy_n)\ **Post date:** [December 13, 2023, 7:25am UTC](https://discuss.openedx.org/t/tutor-k8s-severe-error-sometime/11914/1 "2023-12-13T07:25:03Z")
I upgraded to tutor 16.1.7 recently. Sometimes I go to LMS and see, Server error with no additional messages, just a black screen with a Server error message. Today, I found similar issue, but when I reload the page it become normal, I went into a course and kept seeing There is an error loading this course. I knew right away, it must be one of the worker nodes had a problem. I tried to check using **kubectl get pods -n openedx** all pods were running fine. I ran **kubectl top nodes** and all were good and in low usage. I checked mysql and mongodb, they were both running fine with low usage. I tried **tutor k8s stop** and then **tutor k8s start** but the issue remained. I had to kill both worker nodes, it was very painful because of the pod affinity of **caddy**. After that, everything worked fine. I’m thinking the node volume was full, though I didn’t check, I had to fix the error asap, I gave it 20GB. Does anyone have a similar issue? How do I effectively debug and fix this? ---
**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/openedx/original/2X/e/e0015f89e879bc75925b71fd11133ab15fe98297.png) [@system](https://discuss.openedx.org/u/system)\ **Post date:** [March 12, 2024, 7:25am UTC](https://discuss.openedx.org/t/tutor-k8s-severe-error-sometime/11914/2 "2024-03-12T07:25:36Z")
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