我在apache代理后面有一个erpnext服务器。该服务经常发生故障,并显示503个服务不可用错误
Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
erp.example.it端口443的Apache/2.4.41 (Ubuntu)服务器
我确信erpnext服务器正在工作,因为我可以通过ip访问网页。我知道这个错误是由apache给出的,当