IFS Cloud 23 R1 upgrade error - ORA-00932: inconsistent datatypes: expected UDT got CLOB

Hi,

I'm getting an error after upgrading IFS Cloud from 22.2 to 23.1 as below. No customizations.

Compilation errors for PACKAGE BODY IFSAPP.FRAMEWORK_SERVICES_SVC

Error: PL/SQL: ORA-00932: inconsistent datatypes: expected UDT got CLOB
Line: 1869
Text: KEY 'UserInformation'        VALUE user_info_          FORMAT JSON,

Error: PL/SQL: SQL Statement ignored
Line: 1867
Text: SELECT json_object(

So cannot log in to IFS Cloud.

Same error is at,

NAVIGATOR_SYS

NAVIGATOR_CONFIG_UTIL_API

FRAMEWORK_DEBUG_SERVICES_SVC

Please suggest a solution.