-504 Error Code persist on Google Play apps, except Google Play Services App

[unicorn8334]

Received the code to redeem HP Account again, was able to update Google Services App and was finally able to sync my Google email in settings account, BUT the apps are NOT showing in GOOGLE PLAY INSTALL TO UPDATE UNLESS I CHOOSE THEM FROM PROGRAMS where they're ALL SHOWING  TO UPDATE from being an older version. It'll say when choosing to open it.....OLDER VERSION must update. Google Drive app continues to AFTERWARDS. I am receiving -504 Error... when trying to install the updated version for the necessary Google Apps. Was able to update Google Chrome from apps itself, then it shows in INSTALLED APPS  HELP!  I also followed how to fix -504 errors with tech support prior to service plan expiring earlier. 

[Personal Information Removed]

[unicorn8334]

I received the REDEEMED code  to get a recovery of the HP account.  This was a step in the right direction where Google Play Services IS working with the EXCEPTION of some impt Google apps are appear CORRUPT. GMAIL MAIL, GOOGLE DRIVE, GOOGLE CALENDAR, GOOGLE NEWS LLC and some others, SPECIFIC to Google apps.  Google Chrome did update nicely.  Apparently, a select number of IMPT Apps are not working. How can I reinstall a fresh copy of this software? Asurion, service plan already replaced the MAIN BOARD and NEW BATTERY. PLEASE HELP!

[KrazyToad]

@unicorn8334

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