Default profile &1 of the system could not be read.

What causes this issue?

The check for obsolete profile parameters failed to read the default
profile of the system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

For the affected server check the default profile manually in
transaction RZ10 or directly on operating system level for obsolete
profile parameters.
The following parameters are obsolete and can be removed from the
instance profile:
<AB>zcsa/installed_languages</>
<AB>install/codepage/appl_server</>
<AB>abap/import_char_conversion</>
<AB>install/collate/active</>
<AB>abap/locale_all/needed</>
<AB>abap/set_text_env_at_new_mode</>
<AB>rscp/TCP0B</>
<AB>install/codepage/db/transp</>
<AB>install/codepage/db/non_transp</>
<AB>install/codepage/FRONT_CONVERSION</>
<AB>install/codepage/MNLS_CONVERSION</>
The following parameters are reserved for emergency use only and should
be removed under normal operation:
<AB>abap/set_textenv/ignore_errors</>
<AB>abap/set_textenv/skip_all</>
<AB>abap/locale_ctype</>
<AB>rdisp/reinitialize_code_page</>

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.