The specified file temporary://fileAFwu8t could not be copied, because the destination directory is not properly configured. This may be caused by a problem with file or directory permissions. More information is available in the system log.
http://ftp.drupal.org/files/translations/7.x/adminrole/adminrole-7.x-1.0... could not be saved to translations://.
Fixed
2.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Hello,
Just for people that might struggle with the same problem: migrating a multi-site Drupal from 9 to 10, I've placed each site in its own Drupal installation. Each site was thus inside sites/default ... but I forgot to update settings.php accordingly (notably the config_sync_directory setting).