An attempt was made to use a date expression whose format does not fully (i.e. day, month, and year (including century)) specify a date as a partition bound for a DATE column. The format may have been specified explicitly (using TO_DATE() function) or implicitly (NLS_DATE_FORMAT).
Bring tablespace online before attempting the operation.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/1571293
https://community.oracle.com/message/1056861
https://community.oracle.com/message/3573871
https://community.oracle.com/message/3940045
https://community.oracle.com/message/3887527
https://community.oracle.com/message/168184
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