Cannot load modules/mod_lsapi.so into server: /etc/httpd/modules/mod_lsapi.so: undefined symbol: lscapi_create

Issue

Apache fails to start with the one of the following errors:

httpd[65166]: httpd: Syntax error on line 368 of /etc/httpd/conf/httpd.conf: 
Syntax error on line 1 of /etc/httpd/conf.d/lsapi.conf: 
Cannot load modules/mod_lsapi.so into server: /etc/httpd/modules/mod_lsapi.so: 
undefined symbol: lscapi_create

AH00526: Syntax error on line 62 of /etc/httpd/conf/plesk.conf.d/vhosts/example.com.conf:
Invalid command 'lsapi_phprc', perhaps misspelled or defined by a module not included in the server configuration

Environment

• CloudLinux 7
• mod-lsapi < 1.1-81

Solution

Update the mod_lsapi to the 1.1-81 or higher

# yum update mod_lsapi --enablerepo=cloudlinux-updates-testing
# switch_mod_lsapi --setup

Cause

Internal product issue CLOS-3184 

Useful link

https://blog.cloudlinux.com/cloudlinux-gradual-rollout-slot-4-is-paused-due-to-an-issue-in-mod-lsapi-1.1-79/1.1-80-posttrans-scriptlet