discuz论坛程序发帖时提示The server encountered an internal error or misconfiguration and was unable to complete your request.错误的解决方法

今天老孙在老孙IT上发帖的时候，点击发布后，直接提示一长串错误。

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster@laosunit.com to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.

网上搜了一下，都说是aphace的问题，但经过老孙反复测试，发其他内容都没问题，就涉及到一张图片的时候就不行了。

后来发现了原因，是因为上传的图片太大了，上传的时候没问题，但是发布的时候会报错，把图片压缩一下就好了。