Cannot start the application service due to invalid user id or password for database signon

Dear All,

today I was restoring DB from production env to testin environment. And then DBA do some set up after restore :

1. changed PSDBOWNER table with target database name.
2. update sysadm.psoptions table set GUID=' '
3. Changing SYSADM password with change access password script

after this I continue to do another set up :

1. Change <my DB user> password in PSOPRDEFN and encrypt the password

then I wanna try to shutdown the apps services, do purge caches and reboot the services. I successfully do the shutdown and purge , but when I try to reboot the apps services, it shows error