Did you create the rollable table? All 2d20 systems (save for the official Star Trek Adventures one) currently need the GM to create a rollable table for the damage dice. Per the character sheet's instructions for Conan: the GM will need to make a rollable table you need to create a rollable
table called "Combat-Dice" with name values of "1","2","-","-","1 +
Special","1 + Special"