If you get an error similar to (AIX Netprobe)
Fail - Could not load module /data/oracle/product/220.127.116.11/lib/libclntsh.so. System error: Exec format error Could not load module /data/oracle/product/18.104.22.168/lib/libclntsh.a(shr.o).
The module has an invalid magic number. DBMS API Library loading fails This library is a part of DBMS client installation, not SQLAPI++ Make sure DBMS client is installed and this required library is available for dynamic loading (-1)
it is because the Oracle client library used is 64-bit on a 32-bit Netprobe. A 32-bit Oracle client library is required for a 32-bit Netprobe. Re-installing a 32-bit Oracle client library will resolve this issue.