Program Information：

You can find service in crs_stat, but service already does not exist.

ora....staf.cs application 0/0 0/1 OFFLINE OFFLINE
ora....bp1.srv application 0/0 0/0 ONLINE UNKNOWN dbp
ora....bp2.srv application 0/0 0/0 ONLINE OFFLINE
[oracle@dbp ~]$ srvctl remove service -d timdbp -s sstaf
PRKO-2017 : Service sstaf does not exist for database timdbp.

Solution：

[oracle@dbp ~]$ crs_unregister ora.timdbp.sstaf.cs
[oracle@dbp ~]$ crs_unregister ora.timdbp.sstaf.timdbp2.srv
[oracle@dbp ~]$ crs_stop ora.timdbp.sstaf.timdbp1.srv
[oracle@dbp ~]$ crs_unregister ora.timdbp.sstaf.timdbp1.srv
[oracle@dbp ~]$ crs_stat -t -v
Name Type R/RA F/FT Target State Host
----------------------------------------------------------------------
ora.dbb.vip application 0/0 0/0 ONLINE ONLINE dbp
ora....SM1.asm application 0/5 0/0 ONLINE ONLINE dbp
ora....BP.lsnr application 0/5 0/0 ONLINE ONLINE dbp
ora.dbp.gsd application 0/5 0/0 ONLINE ONLINE dbp
ora.dbp.ons application 0/3 0/0 ONLINE ONLINE dbp
ora.dbp.vip application 0/0 0/0 ONLINE ONLINE dbp
ora....SM2.asm application 0/5 0/0 ONLINE ONLINE dbs
ora....BS.lsnr application 0/5 0/0 ONLINE ONLINE dbs
ora.dbs.gsd application 0/5 0/0 ONLINE ONLINE dbs
ora.dbs.ons application 0/3 0/0 ONLINE ONLINE dbs
ora.dbs.vip application 0/0 0/0 ONLINE ONLINE dbs
ora.timdbp.db application 0/1 0/1 ONLINE ONLINE dbp
ora....p1.inst application 0/5 0/0 ONLINE ONLINE dbp
ora....p2.inst application 0/5 0/0 ONLINE ONLINE dbs