Hello,
We apologize for the issue you are facing with updating the Rank Math Pro plugin. The error message "PCLZIP_ERR_BAD_FORMAT (-10): Unable to find End of Central Dir Record signature" can occur due to several reasons:
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Problem with the Zip File: The plugin zip file may have been corrupted during download. Please download the latest Rank Math PRO version from your account and try installing it again.
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Updating While Connected to a Free Account: Ensure that you are connected to the correct PRO account. You can check this by confirming the email address associated with your Rank Math account on the account page. If you are connected to a free account, disconnect it by going to Rank Math SEO → Dashboard → Help and clicking on Disconnect Account. Then reconnect using the correct PRO account.


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Not Enough Storage Space: If your web server does not have enough storage capacity, it may prevent the upload. Check if you can upload other files to your website. If not, consider freeing up some space or contacting your web host for more storage.
If you continue to experience issues after trying these steps, please reply to this ticket with your site URL, and a human agent from our support team will assist you further. Thank you for raising this concern!
Sources:
How to Fix PCLZIP_ERR_BAD_FORMAT (-10): Unable to find End of Central Dir Record signature » Rank Math
This is an automated reply from Rank Math Support Bot. If you need further assistance, please reply to this topic and a human support agent will reply to you shortly.