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--- litespeed_wiki:php:503-errors [2019/02/27 16:28]
Jackson Zhang [CloudLinux Imunify360 error]
+++ litespeed_wiki:php:503-errors [2019/02/27 19:56]
Lisa Clarke [Plesk 503 error] Copyediting
@@ Line 378: / Line 378: @@
 ==== Plesk 503 error ====
-Some version of Plesk PHP, such as php71 and PHP56's buggy apcu module may cause 503 error on LSWS. Generally, object cache or value cache should enable one only, instead of two or more. It may cause conflicts between module.  Disabling apcu module should fix the problem.
+Some versions of Plesk PHP, such as php71 and php56, have a buggy APCu module that may cause a 503 error on LSWS. Generally, only one object cache or value cache should be enabled. Enabling two or more may cause conflicts between modules.  Disabling the APCu module should fix the problem.
-Plesk Admin -> Tools and configuration -> PHP configuration -> 7.1.x FastCGI application -> Unselect "apcu" and " To ACCEPT"
+Navigate to **Plesk Admin > Tools and configuration > PHP configuration > 7.1.x FastCGI application**. Unselect ''apcu'' and press the **TO ACCEPT** button.
 {{ :litespeed_wiki:php:plesk-503-disable-apcu.png?800 |}}
 ===== Advanced Troubleshooting Guide =====