MyBB Community Forums

I have a user on my forum that is receiving an error when posting images. Here is the error he posted for me.

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I click on the "New Thread" button and use the insert image.

Then this appears:

HTTP 500 Internal Server Error

The website cannot display the page HTTP 500

Most likely causes:
•The website is under maintenance.
•The website has a programming error.

What you can try:

Refresh the page.
Go back to the previous page.
More information

Then I hit the re-fresh button on the top of the browser, and this shows up.



Then I go back to that forum, and the thread is posted as normal.
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Any ideas why this would be happening? The forum url is http://modeltrainfactory.com/forum/

Thanks,
Burt

I highly advise you upgrade to MyBB 1.6.9 - it fixes a high risk SQL injection vulnerability.

Check your server error log to determine what the issue is. It might be a badly configured server or there might be overly sensitive security restrictions in place.