Error (2.17): PLS-00201: The identifier 'DAYS_INTERVAL_TABLE' must be declared
I checked the impdb log and saw that this object was not imported due to an OID conflict. 

At the beginning of the log I found this message.

ORA-39083: Object type TYPE:"VERZANI"."DAYS_INTERVAL" failed to create with error:
ORA-02304: invalid object identifier literal

    Failing sql is:
    CREATE EDITIONABLE TYPE "VERZANI"."DAYS_INTERVAL"   OID 'C01480BB3D223837E0430100007FED58' AS OBJECT
           (DATE_           DATE,
            DAY_OF_WEEK     number(1,0));
    ORA-39083: Object type TYPE:"VERZANI"."DAYS_INTERVAL_TABLE" failed to create with error:
    ORA-02304: invalid object identifier literal

    Failing sql is:
    CREATE EDITIONABLE TYPE "VERZANI"."DAYS_INTERVAL_TABLE"   OID 'C01480BB3D273837E0430100007FED58' AS TABLE OF DAYS_INTERVAL;


So I dropped the schema and rerun the impdp again with the parameter TRANSFORM=oid:n. Now the database went up without any problems.