Backport to branch(3) : Use CoreError for messages of RuntimeExceptions in DynamoAdmin

[feeblefakie]

This is an automated request for a manual backport of the following:

• Original PR: Use CoreError for messages of RuntimeExceptions in DynamoAdmin #3007
• Commit to backport: 7ed8fc7

1. Resolve any conflicts that occur during the cherry-picking process.

git fetch origin &&
git checkout 3-pull-3007 &&
git cherry-pick --no-rerere-autoupdate -m1 7ed8fc7e8ac575f84f2352f6b8b99717a7d667ae

2. Push the changes.
3. Merge this PR after all checks have passed.

Thank you!