Issue Description:
My CRM functions normally under standard conditions. However, when the auto-generated file en_us.lang.ext.php is created, the system displays the following error:
Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
When this specific file is renamed or removed, the system resumes normal operation. However, the issue recurs whenever the file is regenerated.
Question:
What could be causing this behavior, and how can it be resolved effectively?
Hi, welcome to the Community! 
I would start by checking if the generated file has the correct ownership and permissions, so that your web-server user can read it.
Hi,
thanks for the reply,
the files and folders already have the needed permissions,
and i doubled check this for the attached link below and give the permissions once again but still same issue.
This message is not common and I have never seen it. Which system or app is generating it? It doesn’t look like it’s SuiteCRM. Maybe your web server is crashing…
Try looking for some logs on the server that can give you clues about what is going wrong…