Problem in restoring the database


I am facing a problem in restoring the database. while restoring the database i am getting the following error. Please help me.

Its SQL DB, I allocated double disk space.

The error message is 'There are errors in text conversion (text no. 1965-0 does not exist in the .stx file). Internal error: 47-1

Please help me to fix this error.

Are you restoring database in a client older than the original client?