Why some of Twitter accounts’ last tweet date column show “no info” in the grid listing?

The reasons listed below prevent Circleboom to show the last tweet date of Twitter accounts:

1. If Twitter accounts are protected then nobody can reach those accounts’ tweets. We label those accounts’ last tweet date as a “No info” on Grid.
2. Accounts have never tweeted or deleted all their tweets.
3. Circleboom bots regularly check all cached Twitter accounts in our servers and update the last tweets date regularly. Some of the accounts remain not updated, Most likely, these kinda accounts going to be updated soon. During this short time gap, we label those accounts as “no info” on Grid.