Learn how to troubleshoot CyberPanel Server Error (500). Our CyberPanel Support team is here to help you with your questions and concerns.

How to Troubleshoot CyberPanel Server Error (500)

Having trouble with the CyberPanel Server Error (500) message?

According to our Experts, this error is usually due to a generic server-side issue that prevents the server from fulfilling web requests.

This error can arise from various sources. So we have to take a deeper look to find the cause behind the error and fix it.

Common Causes

• Problems with PHP scripts like syntax errors, missing files, or resource limitations, can trigger a 500 error.
• Issues with the MySQL database, including connection failures, query errors, or insufficient permissions, can also lead to this error.
• Incorrect server configurations, like those related to PHP, Apache, or Nginx, can cause 500 errors.
• Also, high server load or resource limitations can prevent the server from processing requests, resulting in a 500 error.
• Additionally, incorrect file and directory permissions can block the server from accessing necessary files.
• Conflicting plugins or themes can sometimes interfere with core functionalities, causing 500 errors.

Troubleshooting Steps

1. First, open the main log file for detailed error messages at `https://ip_address:8090/serverstatus/cyberCPMainLogFile`.
2. Then, look for error messages related to the PHP scripts.
3. If the error pops up after a specific action, like installing a plugin or updating a script, revert those changes to see if the issue resolves.
4. In case the scripts are resource-intensive, increasing the PHP memory limit will help. We can use the CyberPanel interface or CLI commands to adjust this setting.
5. Next, verify that the database is accessible and that the credentials are correct.
6. After that, temporarily deactivate all plugins or switch to a default theme to isolate the issue.
7. Also, monitor CPU, memory, and disk usage. If resources are running low, we can upgrade our server or optimize our website.
8. Additionally, make sure all necessary files and directories have the correct permissions.
9. Sometimes, restarting services like Apache or PHP can resolve temporary issues.

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Conclusion

In brief, our Support Experts demonstrated how to troubleshoot CyberPanel Server Error (500).