The "real" error message isORA-29868: cannot issue DDL on a domain index marked as LOADINGPlease see more details how to find this error in link below.
https://communities.bentley.com/products/assetwise/exor/w/wiki/32171/nsg-load-how-to-find-the-error-message
1. Run script below as highways owner:
SELECT index_name, table_name, owner, status, DOMIDX_status, domidx_opstatus FROM all_indexes WHERE DOMIDX_opstatus IS NOT NULL AND status != 'VALID';
SELECT index_name,
table_name,
owner,
status,
DOMIDX_status,
domidx_opstatus
FROM all_indexes
WHERE DOMIDX_opstatus IS NOT NULL AND status != 'VALID';
2. Delete this invalid index using script below:
DROP INDEX INDEX_NAME FORCE;
replace INDEX_NAME with index name selected in step 1.
see https://communities.bentley.com/products/assetwise/exor/w/wiki/8668/8668