The SRM stopped processing the events because of garbage/junk characters for cmnHistMacChangedMsg (0x210d88) and cmnMACMoveAddress (0x210d89)
CA Spectrum 10.2.x
This issue is address in Spectrum 10.3.0.
You can do the following to work-around the issue:
Edit the $SPECROOT/SG-Support/CsEvFormat/Event00210d88_en_US file.
Change from cmnHistMacChangedMsg = {S 1} to cmnHistMacChangedMsg = {o 1}
Save the file.
Edit the $SPECROOT/SG-Support/CsEvFormat/Event00210d89_en_US file.
Change from cmnMACMoveAddress = {S 1}} to cmnMACMoveAddress = {o 1}
Save the file.
Go to the OneClick Administration web page
Click on "Update Event and Alarm Files" and click on "Reload" button