Hello, at the beginning of a class suddenly when the lesson started on the platform, several of my classmates, like me, could not write in the conversation/chat of a specific channel only, while in other channels we could write normally. the message it displayed said that the answers are limited. We told the teacher but she said she did not know why this is happening and generally I can not reply to any posts on this channel. do you know what happened suddenly and how it can be fixed? Thank you in advance!
