Moodle 3.4 generating 504 when Logging in

[dgedugeek]

Greetings,

I have installation of Moodle 3.4, I`m using VPS hosting with 4 cpu and Memory 8 GB. My site performed good for 2 Months, and today the performance is very low.

The home page is openning in good performance, but when I tried to login it takes some time, and when I tried to check the plugin overview, it gives 504 error.

I have checked with the host provider about the server performance, and they ensured that the server is performing well. Additionally, I have a wordpress site hosted on the same server, and it is performing excellent.

BTW, not all pages gives 504 error, some pages works just fine, some others show pop up dialog with message "undefined".

 

• Some pages that gives 504 such as Plugins, debugging, ....
  
• Some pages gives undefined pop up dialog such as: course pages
  

Please support! Case very sensitive!

Edited May 20, 2018 by dgedugeek

[kmount]

Hi,

 

What does the webserver error log file say?