Name Of The Error: Error 101
Problem: when downloading, updating or installation fails due to data crash, then this error are categorized as Error 101.
The first and the foremost method is to delete all the data and cache regarding the Google play store.
Go to the Settings > Then click on Apps > Then All and select the app that's causing the problem, then select Clear cache and Clear data. After that Go to “Google Play Store” and Select “Clear Data & Clear Cache” to remove all the data regarding Google Play Store.
Alternative Solution: You can delete and Re add your Google Play store account.
• Go to “Settings” -> “Accounts” -> “Google” -> Select “Your Account”
• Go to “Menu” and Select “Remove Account”, and then “Add Your Account”.
• Now “Restart” your mobile device and try to perform update or download.
Vist this link to get more updated on this topic: http://www.officialtechsupport.com/google-play-store-errors-lists-fix