probably due to when this was moved over to the new build the entity names were changed therefore the research entity is looking for a file that does note exist, this will be fixed before the next release
if you intend to fix this your self open up the ship research that grants access to the ship in question and open up the ship in questions enitty file. then where it says research prequsites change the name there to the ships research = solved
btw i am not dead and the borg will be in the next release been on a very long AFK 