1.31steam版的装了mod后在打开时出现问题。有记录，求助怎么破。

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Error [content0]game\gui\commonmainmenubase.ws(73): Could not find function 'GetChosenMainMenuType'
Error [content0]game\gui\main_menu\maincreditsmenu.ws(397): Could not find function 'GetChosenMainMenuType'

Warning [content0]engine\environment.ws(30): Global native function 'EnableDebugOverlayFilter' was not exported from C++ code.
Warning [content0]engine\environment.ws(32): Global native function 'EnableDebugPostProcess' was not exported from C++ code.
Warning [content0]engine\showflags.ws(11): Global native function 'DebugSetEShowFlag' was not exported from C++ code.