My chat doesn't work

Hello, I really hate this thing, everytime i try to roll a dice in ONLY one campaign even if is by /r in the chat or by my PG sheet i don't see the roll in the chat it seems like all is stopped to one thing i did in a session 30 minutes before the end, like I don't see any roll or something even of my friends but they see it. So i need help say me if you need some image to understand better or something because i really need help that campaign probably will start next Saturday.

Hi BadLuckDan! This could be a corrupted Chat Archive. A game's Creator is often able to fix issues with their Text Chat by  clearing the Chat Archive  (note: not  clearing your current Chat Log ). A GM might want to copy/back up the Chat Archive before the Creator clears it.

Hi keithcurtis! It really worked, thanks so much without your help I think that I would leave the campaign, really thanks for your support!

Excellent!