Hello!
Not necessarily sure if this is a bug, but, I haven't played in like six years so I'm confused to say the least lol
I cannot make posts, nor comment on them. Why is that?

You would need 1,000 gathered cheese and 30 playing hours on Transformice in order to access Cafe, this has been like that ever since the COVID-19 pandemic.

A new requirement was put in place recently that you need 1000 gathered cheese to be able to post on the Cafe. You can find a discussion about this requirement in this thread