Getting "Unable to serialize value. Error: Malformed UTF-8 characters, possibly incorrectly encoded" error on admin panel while logged-in. We have upgraded the magento version from 2.0 to 2.3.2
1 exception(s): Exception #0 (InvalidArgumentException): Unable to serialize value. Error: Malformed UTF-8 characters, possibly incorrectly encoded
Exception #0 (InvalidArgumentException): Unable to serialize value. Error: Malformed UTF-8 characters, possibly incorrectly encoded #1 Magento\Framework\Translate->_saveCache() called at [vendor/magento/framework/Translate.php:224]
