ORA-09275
CONNECT INTERNAL is not a valid DBA connection.
Cause
The unsupported CONNECT INTERNAL syntax was used.
Action
To make an administrative connection, either the AS SYSDBA database administrator clause or one of the separation-of-duty clauses (AS SYSOPER, AS SYSASM, AS SYSBACKUP, AS SYSDG, AS SYSKM, or AS SYSRAC) is required. For example, "sqlplus SYS AS SYSOPER".