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Image upload shows 500 Internal Server Error #5402
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Originally created by @Hindin81 on GitHub (Aug 13, 2025).
Describe the Bug
When uploading an image to bookstack, since the last update, I get the following error message:
<html> <head><title>500 Internal Server Error</title></head> <body> <center><h1>500 Internal Server Error</h1></center> <hr><center>openresty</center> </body> </html> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page -->Steps to Reproduce
Create or edit an page and try to upload an image or an file.
Expected Behaviour
It worked since years now it is broken.
Screenshots or Additional Context
Browser Details
Chrome 139.0.7258.128
Exact BookStack Version
v25.07.1
@ssddanbrown commented on GitHub (Aug 13, 2025):
Hi @Hindin81,
You can try looking into the app & server error logs following our guidance here:
https://www.bookstackapp.com/docs/admin/debugging/
Your error mentions
openresty, which indicates a potential proxy in use in front of BookStack which is where that specific response is coming from, so you might want to check any error logs at that level also.@ssddanbrown commented on GitHub (Sep 3, 2025):
Since there's been no further follow-up I'm going to close this off.