i read your message.
1. Your client version is wrong
i have server version 3.7.2 that requires EFT 0.13.5.3.26535. so i have it
2. You're missing one of the prerequisite .NET runtimes - either .NET Framework 4.7.2 or .NET 6
i reinstalled all this programms
3. Your antivirus is blocking one of the client .DLL plugins
i have no antivirus
4. Your game files are corrupt (most likely cause of Specified cast is not valid error)
i reinstalled live eft and spt 2 times
but it still doesnt work.
but live eft still works.