Error occured in call to Open

Error Desc: Syntax error (missing operator) in query expression 'col3='.
Error Number: -2147217900
Error Source: Microsoft JET Database Engine

VarName: strQry
Var Value:SELECT * FROM topPageKey WHERE col3=

VarName: iCursor
Var Value:0

VarName: iLock
Var Value:1

VarName: vOptions
Var Value:0