When ive a CTD no message is shown

[O'ETAIPOS]

What? Building a port in Salmis is not creating graphics?

What have you changed Obelics? (you mention script file - which one?)

Edit: Found Khlevan's thread. It seems that script only can't create port graphics. If you know how to use perfect spy/faction swiching - swich it to ptolemies, remove ship being built and start building trade port. Or you can destroy navial port and start building trade port and naval port.

BDW. Lowest level of trade port is "port" - ignore lower level ones