Well man, i deleted all my tibia clients, deleted the whole tibia file in %appdata% , downlaoded youre tibia 10.41 from ur website and still have that bug when opening hotkeys that i debug
I don't really know, I've never seen or heard of an issue like this. A few things you can try...
1) Does the client crash when opening options from the login screen (before logging in)? If not, try logging onto another 10.41 server and see if you get the crash there. If it crashes on the login screen or on another server, the problem is most likely on your end. If it does not, I will have to do some digging to see if there is anything on my server causing this.
2) I don't think this is required... but are you running IP changer / Tibia as a local administrator? There may be a read/write issue with your config file. In the error screenshot you posted, it said something about a read access problem. If you can, make the Windows user you are logged in as a local administrator as well.
3) Go into your IP changer settings (found on the screen where you put in the IP). Under client versions, verify that the 10.41 path is correct by clicking "Edit selected Tibia client".
4) Also in IP changer settings, you may want to make sure "Store client configuration files in seperate folders" is turned OFF. If it is turned on, then deleting your Tibia folder in %appdata% may not have deleted the corrupted config file. Try deleting your Tibia folder in %appdata% again and disabling "Store client configuration files in seperate folders".
If none of the above worked, can you please copy and paste the complete error message here? Also, is this problem exclusive to Zeal Online or the 10.41 client? Have you connected successfully to other OpenTibia servers in the past, or real Tibia? If so, when and what version?