PHP Startup: Unable to load dynamic library 'kolabicalendar.so'

[gs63875]

PHP Startup: Unable to load dynamic library 'kolabicalendar.so' (tried: /opt/plesk/php/7.4/lib/php/modules/kolabicalendar.so (/opt/plesk/php/7.4/lib/php/modules/kolabicalendar.so: cannot open shared object file: No such file or directory), /opt/plesk/php/7.4/lib/php/modules/kolabicalendar.so.so (/opt/plesk/php/7.4/lib/php/modules/kolabicalendar.so.so: cannot open shared object file: No such file or directory))

@ALL anybody why is issue occurs. I am not using Roundcube