Apex Class
only aggregate expressions use field aliasing
カンマの有無を確かめましょう
誤
Select Id Name FROM Account
正
Select Id,Name FROM Account
VisualForce Page
SObject row was retrieved via SOQL without querying the requested field : Name
SOQLで呼び出してないよ SOQLを修正しよう
誤
Select Id FROM Account
正
Select Id,Name FROM Account