PHP 8.0 Compatibility

Hi,

When using this plugin with PHP 8.0 (its fine with 7.4) and WP_DEBUG and log true, I sometime get the following error (which break the site and I need to simply refresh the page):

Fatal error: Uncaught Error: str_replace(): Argument #3 ($subject) must be of type array|string, bool given
in /wp-content/plugins/query-monitor/collectors/transients.php on line 84

Call stack:

    str_replace()
    wp-content/plugins/query-monitor/collectors/transients.php:84
    QM_Collector_Transients::setted_transient()
    wp-content/plugins/query-monitor/collectors/transients.php:59
    QM_Collector_Transients::action_setted_blog_transient()
    wp-includes/class-wp-hook.php:324
    WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:348
    WP_Hook::do_action()
    wp-includes/plugin.php:517
    do_action()
    wp-includes/option.php:1360
    set_transient()
    wp-content/plugins/og/includes/iworks/class-iworks-opengraph.php:769
    iWorks_OpenGraph::wp_head()
    wp-includes/class-wp-hook.php:324
    WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:348
    WP_Hook::do_action()
    wp-includes/plugin.php:517
    do_action()
    wp-includes/general-template.php:3052
    wp_head()
    wp-content/themes/highwind-child/header.php:43
    require_once()
    wp-includes/template.php:790
    load_template()
    wp-includes/template.php:725
    locate_template()
    wp-includes/general-template.php:48
    get_header()
    wp-content/themes/highwind-child/single.php:10
    include()
    wp-includes/template-loader.php:106
    require_once()
    wp-blog-header.php:19
    require()

Is this something to fix on query monitor side ?

Thx!