phpcms prompts server security authentication error

Problem:

When phpcms uploads attachments or images through the background, a "server security authentication error" occurs and the upload is unsuccessful.

Cause of error:

Because app_path has not been modified, the value of app_path is inconsistent with the previous values, so when uploading images, it will prompt "Server security authentication error" ".

Solution:

Make sure the path of app_path in the "caches/configs/system.php" file is the same as that of other domain names by modifying it.

Recommended tutorial: phpcms tutorial

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