If you need to update Magento 2 Translation Extension by Magefan, please follow the steps below. Note that the update instructions depend on the method translation extension was installed with.
Update using composer
If the translation module was installed via the composer (check if vendor/magefan/module-translation folder exists), then you need to run these simple CLI commands in Magento 2 directory:
composer remove magefan/module-translation composer require magefan/module-translation ^x.x.x # replace x.x.x with the version you want to use php bin/magento setup:upgrade php bin/magento setup:di:compile php bin/magento setup:static-content:deploy