Visit The site tip “Internal Server Error The Server encountered an Internal Error or misconfiguration and was unable to complete your request”solution: log in to FTP or file manager, check The site directory file permissions settings, and set folder permissions to 755, single file permissions set to 644.
This setting after 644, the problem can be solved, but also will not affect the site needs to write permissions, meet the normal operation of the site. If your site has a lot of permissions that need to be set in order to improve efficiency.
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