Cannot send Images TS5/6

I have been still using the TS3 primarily for the last several years. Recently I downloaded TS5 client and today TS6 beta. I am the owner of my server but I cannot send pictures in chat. I do not even have the icon that everyone else seems to have. Everyone else in my sever can send images but I cannot. Any ideas how to fix?

See below for a picture of what I see…

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i have the same Problem, pls someone help