unfortunately you have a "little problem"
you are using "init<sid>.ora"
In SAP (if you have read the installation of RAC in SAP environment document in this community) you are required to
1) use a shared ORACLE_HOME
2) use an spfile
3) because of the previous two, the spfile name should not contain the <SID> of any instance, it should be spfile.ora
In your case, it is clear that you are using a "pfile", and the <instance SID> is part of the name. So you have a bad configuration.
Please, review the installation documents, create an spfile shared by all the instances with a generic name "spfile.ora" and the pfile will not be necessary.