My tablespaces appear to have plenty of space:
TABLESPACE TOTAL FREE
TABLESPACE_NAME FILE_NAME TOTAL KB KBYTES NEXT_FREE
--------------- -------------------------------------------------- ---------- ---------- ----------
DRSYS /opt/oracle/oradata/protect/DRSYS01.DBF 20480 19456 19456
SYSAUX /opt/oracle/oradata/protect/SYSAUX01.DBF 512000 376832 376832
SYSTEM /opt/oracle/oradata/protect/SYSTEM01.DBF 542720 191872 191872
UNDOTBS1 /opt/oracle/oradata/protect/UNDOTBS01.DBF 33553408 33529600 4063232