Do you have any crash info etc? The crash messags? The config you provided basically does this:
uses redis (in memory database kinda) to queue tasks to the n8n worker, max 10 tasks at once and each task can take up to 60 min. So if you were getting a timeout it might possibly help.

Please provide more info or even a crash screen shot + logs if possible

Reading through your question, how did you configure your n8n project? Did you use this template? Will help to have a look to reduce manual configuration steps https://railway.com/deploy/r2SNX_

i used the template provided. but there are suggested edits to improve it reliability.