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after upgrading the theme I can not access the sales -> order page any more with the following error. I disabled all third party extensions to solve possible conflict without success. I am using Magento 2.4

I'd appreciate any help. This is the error

{"0":"Unable to unserialize value.","1":"#1 Magento\Ui\Model\Bookmark->getConfig() called at [vendor/magento/module-ui/Component/Bookmark.php:81]\n#2 Magento\Ui\Component\Bookmark->prepare() called at [vendor/magento/framework/View/Layout/Generator/UiComponent.php:164]\n#3 Magento\Framework\View\Layout\Generator\UiComponent->prepareComponent() called at ...

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It sounds like one of the entries in your ui_bookmark table contains a non JSON config value. You could try finding the culprit there by checking the entries for your user_id.

Alternatively you can empty the ui_bookmark table and see if that resolves the issue.

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