Hello,
I’m sorry to hear about the issues you’re facing with Rank Math not updating and the site crashes. The error message you received, PCLZIP_ERR_BAD_FORMAT (-10): Unable to find End of Central Dir Record signature, typically occurs due to a few reasons:
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Problem with the Zip File: The plugin zip file may have been corrupted during download. You can download the latest Rank Math PRO version from your account and try installing it again.
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Updating PRO Version While Connected to Free Account: Ensure that your website is 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 it’s 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 server doesn’t have enough storage space, it may prevent the plugin from updating. Check if you can upload other files to your website. If not, you may need to free up some space or contact 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 bringing this to our attention!
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.