SXMB_MONI Error

Hi,

I am facing a small problem in XI. Could you please help me out for the same.

The problem is like

for a XI type communication channel for sender FTP I see following error in SXMB_MONI -

Unable to read user password from communication channel of type Error when accessing the secure store (access ID = 3650CAFA1FBAA04E8F260C6C4C1923FA) Error while reading from the secure store: ERROR_UNKNOWN: Cannot find entry in secure store (SECSTORE,023).

Could anyone of you please let me know what could be the problem here. I have specified the correct user name and pwd in communication channel.

Thanks,