Help script error on opcode 1992

[Wolfram11112]

My computer turned off when my mother unplug the plug from my computer U_U (dead battery) and since I my character is level 1, I lost all equipment, all money, I just keep my army, I can give you my backup file by email if necessary or follow your instructions if you know the problem , thanks ^^ .I play in Nova aetas 5.0 mod .For the problem we my said in my connection :
"Script error on opcode 1992: Invalide Mesh ID -25; Line no 6 :
At Tableau material tab_heraldic_banner_03
At Tableau material tab_heraldic_banner_03"