I had this happen to me as well on my very first owned TBM charter flight. I found that going back to main menu, loading the TBM 930 in free flight and then using the EFB to set the fuel to max will allow there to be fuel in the career mode.
Seems to be initially defaulted to 0 fuel, but doing the above resets it.
The fuel is generally bugged in career mode across the board, but for the TBM specifically this worked. You’ll notice that regardless of the fuel amount you purchase in menu, the same default fuel levels will be loaded into planes when you start your mission. Hopefully this will be fixed soon.