Hi Roberto,
It seems you have an issue related with IOT tables (Note 641435 - FAQ: Oracle Index
Organized Tables (IOTs) and limitation of Oracle (ORA-1450).
For starting point please adjust your Oracle parameters with Note 1171650 - Automated Oracle DB parameter check and try again.
Regarding the provided table, as I have checked fresh installation NW 7.4, there are no table with above name, so this tables is your current BW tables. You can consider to reorganize the table first to affecting the clustering factor of index creation (Note 832343 - FAQ: Clustering factor), hopefully it will reduce the number of leaf of B*Tree (related with ORA-1450).
Last but not least, if above options aren't help, you can consider to empty the tables and populate again later.
Regards.
Achmad