PHP error Undefined array key "usage.page_optm"

#1
Hello,

Getting this error in up to date Wordpress and PHP8.

[STDERR] PHP Warning: Undefined array key "usage.page_optm" in /var/www/vhosts/***/html/wp-content/plugins/litespeed-cache/src/cloud.cls.php on line 246

Any ideas?

Thanks.
 
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