blank General Settings page after upgrading from 6.3.2 to 7.1.2

[bedet]

pls advise, no php errors
 

[sentq]

1) Delete all files from inside /templates_c/ directory, or from Admin Area -> Utilities -> System -> System Clean up -> Empty Template Cache.

2) if #1 didn't solve the problem, then try this: https://docs.whmcs.com/Blank_or_Partially_Rendered_Pages#Enabling_From_Your_Configuration_File

[brian!]

3) http://help.whmcs.com/m/64804/l/678988-a-blank-admin-dashboard-after-update

[bedet]

1) Delete all files from inside /templates_c/ directory, AND custom admin template fixed it!! thnx