this appears to me when i start the game, could someone help me with this?

a mod caused an error [system.exception] details: system.reflection.targetinvocationexception: exception has been thrown by the target of an invocation. ---> system.nullreferenceexception: object reference not set to an instance of an object at proceduralobjects.proceduralobjectsmod.onsettingsui (uihelperbase helper) [0x00000] in <filename unknown>:0 at (wrapper managed-to-native) system.reflection.monomethod:internalinvoke (object,object[],system.exception