Broken site After attempting uprade

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I tried to do an update on 5.7 and my site broke.
The home page displayed an error about cc_optin so searched the C5 forum and ready that I needed to delete all files for this add-on using FTP, then delete all tables in PHP relating to cc_optin. I did all this and now the site has this error on home page:

Symfony\Component\ClassLoader\MapClassLoader::loadClass(): Failed opening required '/home/cuecreat/public_html/packages/cc_optin_free/controller.php' (include_path='/home/cuecreat/public_html/updates/concrete5.7.5.13_remote_updater/concrete/vendor:.:/usr/lib/php:/usr/local/lib/php')

this is my site:http://cuecreative.co.uk

Please can you help?

Type: Pre-Sale
Status: In Progress
deanhawthornthwaite
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ConcreteConversion replied on at Permalink Reply
ConcreteConversion
Hi, you cannot just delete the files and the related DB tables. Your c5 site will still have information about opt-in since you installed it as an add-on, and it tries to access it.

You can either restore the opt-in files and DB tables from a backup, and try to solve the initial problem, or search the c5 forum for information how to remove an add-on manually. The latter may be easier.

Best regards,
Andy
Concrete Conversion
deanhawthornthwaite replied on at Permalink Reply
deanhawthornthwaite
i have been trying to restore from a backup i took before i tried to upgrade but this has failed. I dont have another backup. please, please can you suggest another option as otherwise i have to build my site from scratch and dont even have screen shots.
ConcreteConversion replied on at Permalink Reply
ConcreteConversion
My other suggestion was to search the c5 forum for information how to remove an add-on manually. You can probably find what you're looking for there.
deanhawthornthwaite replied on at Permalink Reply
deanhawthornthwaite
unfortunately, thats where i read about deleting the stuff from the database so Im not sure i should rely on that!
ConcreteConversion replied on at Permalink Reply
ConcreteConversion
If you cannot restore the opt-in files, I don't see that you have much of a choice.

concrete5 Environment Information

cant access this, site is broken

Browser User-Agent String

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36

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