This error message usually occurs when there is a problem communicating with the server, or the server is not able to process the request properly. It can be caused by a variety of issues, including:
- A plugin or theme conflict.
- A problem with your WordPress installation.
- A server issue.
Here are some steps you can try to resolve this issue:
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Check the WordPress version: Make sure that you are running the latest version of WordPress. If not, update it to the latest version.
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Check the plugins and themes: Try deactivating all the plugins and switching to a default WordPress theme. Then, try to perform the update again. If the update works, then the issue is likely caused by a plugin or theme conflict. You can then reactivate your plugins and theme one by one to find the one causing the issue.
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Check the server configuration: Ensure that your server meets the minimum requirements for running WordPress. Check the server logs for any errors or issues that could be causing the problem.
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Check the PHP version: Make sure that you are running a compatible PHP version with WordPress. WordPress recommends using PHP version 7.4 or higher.
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Check file permissions: Ensure that the files and directories on your server have the correct permissions. Incorrect permissions can prevent WordPress from updating properly.