Error in Redux_Filesystem

Installed the latest version from yesterday (4.5.4) and after activating the plugin I’m getting the following error:

Fatal error: Uncaught Error: Typed property Redux_Filesystem::$chmod_dir must not be accessed before initialization in /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/classes/class-redux-filesystem.php:779 

Stack trace: 

#0 /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/classes/class-redux-filesystem.php(360): Redux_Filesystem->mkdir() 
#1 /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/classes/class-redux-filesystem.php(289): Redux_Filesystem->do_action() 

#2 /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/extensions/custom_fonts/class-redux-extension-custom-fonts.php(120): Redux_Filesystem->execute() 

#3 /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/classes/class-redux-api.php(253): Redux_Extension_Custom_Fonts->__construct() 

#4 /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/classes/class-redux-api.php(1606): Redux::load_extensions( in /var/www/xxx/html/wp-content/plugins/redux-framework/redux-core/inc/classes/class-redux-filesystem.php on line 779

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