'Migration from SQL Server 2000 to SQL Server 2012 - Invalid character value forcast specification

I've migrated a SQL Server database from SQL Server 2000 to SQL Server 2012. As first step, I migrated it to SQL Server 2008 as an interim step. The ODBC Connection went with test completed successfully. But, when trying to run the application an error appears [Invalid char cast][1]

Invalid Character value for CAST specification

When I closed the above error window the application has started, but some modules didn't work at all.

Anyway the application pulls some correct data from the database, but obviously crashes with some datatype conversions or something furthermore which I can not assume. Is there a way to find out which part of the database this problem arrives?



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