Plugin could not be activated because it triggered a fatal error

Hi,
just a newbie.
I installed wp-cerber 9.6.2 in wordpress 6.3 on php 8.
Successfull installed, but when I click activate it showed "Plugin could not be activated because it triggered a fatal error’

the following log from debug.log

#0 [internal function]: {closure}()
#1 /[edited]/wp-content/plugins/wp-cerber/cerber-settings.php(259): array_map()
#2 /[edited]/wp-content/plugins/wp-cerber/admin/cerber-admin-settings.php(3247): cerber_text2array()
#3 /[edited]/wp-content/plugins/wp-cerber/admin/cerber-admin-settings.php(3211): cerber_grand_sanitizing()
#4 /usr/share/nginx/livelt-beta/wp-content/plugins/wp-cerber/admin/cerber-admin-settings.php(3022): cerber_settings_pre_update()
#5 /[edited]/wp-content/plugins/wp-cerber/cerber-settings.php(662): cerber_settings_update()
#6 /[edited]/wp-content/plugins/wp-cerber/cerber-load.php(7001): cerber_upgrade_settings()
#7 /[edited]/wp-content/plugins/wp-cerber/cerber-load.php(809): cerber_upgrade_all()
#8 /[edited]/wp-content/plugins/wp-cerber/wp-cerber.php(223): cerber_init()
#9 /[edited]/wp-admin/includes/plugin.php(2318): include_once(‘…’)
#10 /[edited]/wp-admin/plugins.php(192): plugin_sandbox_scrape()
#11 {main}

any suggestion?
thank you in advance.