Hello,
I'm trying to connect to some training z/os mainframe from VS Code. Trying to proceed with the course "Learning COBOL programming with VS code". Connection guide is in attachment. I have successfully imported configuration files and Data set LearnCOBOL.zosmf has been created successfully but when I try to connect using my mainframe username and password I constantly get this in VS Code

do not understand what's wrong to be honest. JSON configuration file looks like this

ip address is correct. port is correct.
any suggestions will be much appreciated
thanks.
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Azat Mukhametzianov
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