Local connection error :wrong ELF class

I want to create a local connection to the domino for accessing the local database.I can run this on Windows(32bit) platform.But when I create the local connection on the Linux(RHEL52-64bit) platform, I got the following error message:“/<domino_directory>/liblsxbe.so:wrong ELF class:ELFCLASS32(Possible cause:architure word width mismath)”

I have added the Notes.jar, NSCO.jar and liblsxbe.so to the class path.I thought this maybe the domino version doesn’t support Linux(RHEL52-64bit) platform, but the remote connection to the domino server can run smoothly.

My Domino setup package is:“IBM Lotus Domino Server 8.0 Linux for x86 English (C13NJEN)”.

I found the domino8.0 support Linux (RHEL) 5 (64-bit),then how about RHEL52 (64-bit)? And what’s means of “wrong ELF class:ELFCLASS32”?