i can't comment

so, if i try to comment i get this error:|

Failed to load resource: the server responded with a status of 500 ()
335:1 Uncaught (in promise) SyntaxError: Unexpected end of JSON input
    at m (libgalaxy.CV9mRdi5.js:1:316)
    at async HTMLButtonElement.S (GameDiscussion.D46bQHK_.js:1:6933)