Database creation SQL scripts are not good enough.
The main problem is the trigger creation. I suppose, ending trigger creation with newline and slash is good idea:

CREATE OR REPLACE TRIGGER TRIG_SEQ_m_bugfile BEFORE insert ON m_bugfile FOR EACH ROW WHEN (NEW.id IS NULL OR NEW.id = 0) BEGIN select SEQ_m_bugfile.nextval into :new.id from dual; END;

/

Otherwise the whole following code will go to the trigger body.
Btw I can't see any bad in the "/" ending of all statements.

Next thing is the indexes creation - some of them is repeating. Maybe CREATE OR REPLACE <object> instead of CREATE <object>?