need help our npm
Too little information here to really give you any feedback or guidance. I would recommend a support ticket if you can't post further specifics or details, but this is not enough to go off of.
What page are you talking about? You can check your site using the monitoring service HostTracker www.host-tracker.com/en for example. So you can find out the cause of the problem: whether it is related to hosting or problems on the site itself.
Clear your browser's cache. If there's a problem with the cached version of the page you're viewing, it could be causing HTTP 500 issues.
Delete your browser's cookies. You can correct some 500 Internal Server Error issues by deleting the cookies associated with the site on which you're getting the error.
After removing the cookie(s), restart the browser and try again.
Troubleshoot as a 504 Gateway Timeout error instead. It's not very common, but some servers produce a 500 Internal Server Error when in reality, 504 Gateway Timeout is a more appropriate message based on the cause of the problem.