SMD agent down

Hi All,

SMD agent went down with below error message.Please help us to fix this issue.

{0}#1#java.io.IOException: File "/usr/sap/DAP/SMDA38/SMDAgent/./temp/smdserver/secstore/TechnicalSecStore0044b2404e5b74dd54af0b4df5cd928b.properties" is invalid: recor

d with key "$internal/mode" is missing.

Regards,

MK