It seems that the STORES table in the CO schema has no logo column (along with related columns) populated with actual data.
Please put some. It will help.
What is the LOGO_CHARSET columns for, anyway?
Thanks.
See what DB2 provides, e.g.
https://www.ibm.com/docs/en/db2/12.1.0?topic=samples-sample-database#r0001094__quinpho__title__1