C# win form sending a message on telegram to a pr. channel exception error

Gennady Gurin 206 Reputation points
2026-10-22T02:27:00.1833333+00:00

Sending a message to a private channel on Telegram,

not sure why I get exception message when running code.

I attached 2 files.

https://1drv.ms/i/c/4bb745d09a980e0c/IQAgTbHfYIUFR7SS9C1J1elwAcWxLDv1-fFFqxvo8SM3YXo?e=EFa1FV

https://1drv.ms/i/c/4bb745d09a980e0c/IQBkO7GluIWcQYgtIXCHiKQgAYTIu7Li8xnhoJV0brKMwFU?e=N6o6TS

Anyone knows,

Thanks in advance.

Developer technologies | C#
Developer technologies | C#

An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.

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