How do I fix a 'Call to undefined function' error?

By: USER4351
28 Agustus 2025 Support 5 minutes
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Question

Grade: Education Subject: Support
How do I fix a 'Call to undefined function' error?
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The solution depends on the cause. Try updating your plugins and themes to the latest versions. If the problem persists, temporarily deactivate all plugins and see if the error disappears. If it does, reactivate them one by one to identify the conflicting plugin. Check your PHP version and ensure it's compatible with your WordPress version. If you suspect a corrupted file, restore from a backup.
Answered on 28 Agustus 2025

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