Trouble using Padmak SwitchBotv3

Hi,i have a trouble when i'm using padmak switchbotv3.
Here it is:
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Any help will be welcomed,but if you help me please leave a reply in english.
I play on ArenaMT2

I think i maybe can help you whit the first Screen , but i dont know what to do at the other.
In your Folder is a file named Switchbotv3 - Alter Injector. Activate it , when it starts press the Button Chose DLL. Then you come to a folder. There you chose switchbotv3.dll . When you did it , you can press the Button Chose Window , press it , than you have 3 seconds to chose your Metin window. Just click in the window. Now it should work , but i am not sure.
I think it the best when you ask Padmak himself