Cause
The SDO_ETYPE column in the <layer>_SDOGEOM table contains an invalid geometric element type value.
The SDO_ETYPE column in the <layer>_SDOGEOM table contains an invalid geometric element type value.
Redefine the geometric element type in the <layer>_SDOGEOM table for the specified geometric element using one of the supported SDO_ETYPE values. See the Oracle Spatial documentation for an explanation of SDO_ETYPE and its possible values.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/369996
https://community.oracle.com/message/9809864
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