Please follow the steps carefully:
1. You need to make sure that sybase client is properly installed in your netprobe server (make sure that you have to correct platfrom, if you are using 64bit netprobe then you need the 64bit sybase client as well).
2. Look for libsybintl.so file and take note of its absolute path.
3. In your netprobe startup script, LD_LIBRARY_PATH should be pointing to libsybintl.so location eq.
setenv LD_LIBRARY_PATH $SYSBASE_HOME/lib:.
restart you server and verify if sql-toolkit is now working properly.