Oracle Message ORA-13112 - cannot delete topo_geometry layer [string] from topology

ERRORcannot delete topo_geometry layer [string] from topology
CAUSEIt was not possible to delete the specified topo_geometry layer from the topology.
ACTIONCheck USER_SDO_TOPO_METADATA to see if the specified topo_geometry layer is part of the topology. Only those topo_geometry layers which are part of the topology can be deleted from it.