I am working with db2 v5.2 and aix 4.3.3

recently we found out database can not handle franch words in just one of out database in this instance (two other database are fine) after some investigation I found that code page in db cfg is 850 and in syscat.packages table is 819 (other two databases both values are 850) could you please someone tell me How it comes? is it the root cause of my problem? and how can I fix that.
thank you in advace for your help.

At /export/home/db2inst1/sqllib/cfg directory, there is a file named db2cli.ini

At beginning

Add following
[COMMON]
disableunicode=1


WTH

Thank you for your help,
A question: after changing should I compile the application or bind/rebind the packages?