Error code 400

I've been trying to claim my rewards for little over a week now. I can't because I'm consistently getting a 'error code 400' alert. I have sufficient icx the wallet left to cover fees. I was wondering what is going on here? Is the blockchain down for like a week or so? Also found a lot more mentions of this bug online, and no single response about that it is an awknowledged bug. Edit: Why is this post locked? Now I cannot reply that I would be really worried if any of those suggestions in that comment actually would help. And I'm very curious right now: what is error code 400?