Hi Prakash
From the logs it seems like somehow the MII Classes are not loaded.
Can you check if the MII app is started?
For this go to NWA on your server and then select Menu options "Operations -> Systems -> Start & Stop -> Java EE Applications"
Search for xmii.
Check all the apps mentioned in the list are started especially the one named xapps~xmii~ear.
If these are not started then start them manually. If one of them fails to start please send the logs.
Minimum requirement for EHP1 is SP4. Ensure you have this version however the issue does not seem to be related to that.
Please also mention if you are using ME co-located with MII on this server?
Best regards
Partha