User defined join condition and/or source filter condition <string> contains character(s) that is(are) not valid in the code page of the source database connection. The invalid character starts at position <number> in the above condition.
The join condition or the source filter condition or the combination of both join and filter conditions contain characters that are invalid in the source database connection code page only.
Change either the join, filter, or both conditions to contain characters included in the source database connection code page.