Remove old grid and database home after Upgrade in RAC

Hello. I try to remove old homes in RAC machine. I have 2 old grid. I need to delete 11.2.0.3 and 11.2.0.4 . Rac machine is working and shouldn't be stopped.

ls /u01/app

11.2.0.3  11.2.0.4  12.1.0.2  grid

oakcli show version -detail

	GI_HOME	12.1.0.2.2(19769480,	Up-to-date
	19769479)
	DB_HOME {
	[ OraDb12102_home1 ]	12.1.0.2.2(19769480,	Up-to-date
	19769479)
	[ OraDb11203_home1 ]	11.2.0.3.13(19769496	Up-to-date
	,17592127)
	}

I tried to delete 11.2.0.3 but I got this error.

[grid@orcl1 deinstall]$ echo $ORACLE_HOME

/u01/app/11.2.0.3/grid

[grid@orcl1 deinstall]$ cd /u01/app/11.2.0.3/grid/deinstall/

[grid@orcl1 deinstall]$ ./deinstall -checkonly /u01/app/11.2.0.4/grid/

Checking for required files and bootstrapping ...

Please wait ...

Location of logs /u01/app/oraInventory/logs/

############ ORACLE DEINSTALL & DECONFIG TOOL START ############