Check if package is in the PLAN.
Check if same DB2 system(Environment) is being while executing program and where bind was executed.
Query SYSIBM.SYSPACKAGE and verify latest bind is yours and pointing to qualifiers you want them to be. Someone else could be compiling same program. Also check CONTOKEN is what it is in the DBRMLIB. If you picked production DBRMLIB then point execution of program to production loadlib, part of CONTOKEN is in loadlib which is another reason for -805.