Before when I started my frontend I could not access my APIs because of an ‘Internal Server Error’ and I had to restart my backend to get it working again and everything was fine, but in another 4 hours it did not work, I tried to fix it with Cron, but it was still the same. Now it's something different, the Build is running fine, but I don't have a log in the Deploy, and when I go to the Railway URL I get ‘502 Bad Gateway’. So my question is, do I have to pay for it to work properly? If not, how can I fix this problem, I am attentive.