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To log into the server, you need to click on a button in the chat, but with Aristois, I can’t do this. 1.12.2 no mods
Photo:
Do you have colorchat on?
@Dyiing where can I check it? 
In the Aristois menu
@Dyiing turning off and on doesn't work
You tried turning it off and rejoining the server right? It will not work on past messages, you need to get a new message in chat while the mod is already off. Don’t turn it back on
@Dyiing rejoining doesn't work re-opening minecraft also doesn't work
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