Please update this plugin to version 6.4.1 or higher as soon as possible. It addresses a critical unauthenticated privilege escalation vulnerability.

LSCache v6.4.1 for WordPress Now Available
https://www.litespeedtech.com/support/forum/threads/lscache-v6-4-1-for-wordpress-now-available.23303/
Announcing: LSCache for WordPress v6.4.1 In this release: Security patch, bug fixes, and more! RELEASE LOG: - ❗[Security] This release patches a security issue that may affect previous LSCWP versions since v1.9. - [BUGFIX] Page Optimize: Fixed HTML minification returning blank page issue...