IIS-CONN-JRULES-63309E    The specified column name column name is invalid. Column names must start with an alphabetic or underscore (_) character and must contain alpha-numeric, underscore (_), dollar ($) and period (.) characters only.

Explanation

The column name for one of the links was specified manually and is invalid. Column names must start with a letter or underscore (_) and must contain only alphanumeric characters, underscores (_), dollar signs ($), and periods (.).

User response

Specify a valid name for the column.