Can you add these things in the "en.txt" file of the STRINGS folder:

[CLASS_SHIP]
{0} {1}
(it's the class of the ship in the shipyard construction bay, it will be useful for the translators)

EXAMPLE:
English
Conestoga Class => {0} {1}

French
Classe Conestoga => {1} {0}

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Also these lines was forgot to be coded:

{0} constructed in sector {1}
(about the structures)

Research has been completed on {0}
A new colony has been etablished in the {0} sector
There is a starvation in the {0} system