Error modifying column properties.
Appears when your constraint expression contains an error.
ODBC error text
[Microsoft][ODBC SQL Server Driver][SQL Server]The name '[column value]' is illegal in this context. Only constants, constant expressions, or variables allowed here. Column names are illegal.
Explanation
A default value defined for a character column is not enclosed in single quotation marks (').
Action
Enclose the value in single quotation marks in the database column's Default Value cell, and then save the table.