Can't bind to native class Engine.MaterialExpressionPower

Address = 0x4718a388 (filename not found) [in C:\WINDOWS\System32\KERNELBASE.dll]
Address = 0x8cf07715 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cebd2c5 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce7e5b9 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce9f551 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce9fb8c (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cea9645 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce9e53e (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cea95ce (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce9a73f (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cf07c17 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce95306 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ce94a9d (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cee7172 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cee6f5a (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8d063ec5 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8d03998f (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ceab235 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8ced76da (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8cedfaba (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8d8cb71e (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8d8df905 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8db1db2c (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8db17ec0 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8db17f0a (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8db1fc91 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x8e16e294 (filename not found) [in C:\Jeux\Steam\steamapps\common\killingfloor2\Binaries\Win64\KFGame.exe]
Address = 0x48773dc4 (filename not found) [in C:\WINDOWS\System32\KERNEL32.DLL]
Address = 0x4abf3691 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]
Address = 0x4abf3691 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]