Issue getting 503 server error when i create plesk user using api

[hamza-24]

Server operating system version

centOS 7

Plesk version and microupdate number

18.0.50

when i create plesk user using my website it creates the user in plesk but on my webpage it shows server 503 error as output result. although everything is working but only issue is showing of this error . how cani remove this error.

 

[Peter Debik]

Please provide the exact steps and script what leads to the error. Please also provide a log excerpt that shows the 503 error.