Uncaught Error: Call to a member function get_settings() on null in /.../application/Restful/Roles.php

[aamplugin]

{
    "code": "internal_server_error",
    "message": "<p>There has been a critical error on this website.<\/p><p><a href=\["https:\/\/wordpress.org\/documentation\/article\/faq-troubleshooting\/\"](https://wordpress.org//documentation//article//faq-troubleshooting///)>Learn more about troubleshooting WordPress.<\/a><\/p>",
    "data": {
        "status": 500,
        "error": {
            "type": 1,
            "message": "Uncaught Error: Call to a member function get_settings() on null in \/home\/wp_ftba6z\/marwal159.dream.press\/wp-content\/plugins\/advanced-access-manager\/application\/Restful\/Roles.php:366\nStack trace:\n#0 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-content\/plugins\/advanced-access-manager\/application\/Restful\/Roles.php(266): AAM_Restful_Roles->_clone_settings(Object(AAM_Framework_Proxy_Role), Object(AAM_Framework_AccessLevel_Role))\n#1 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/rest-api\/class-wp-rest-server.php(1292): AAM_Restful_Roles->create_role(Object(WP_REST_Request))\n#2 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/rest-api\/class-wp-rest-server.php(1125): WP_REST_Server->respond_to_request(Object(WP_REST_Request), '\/aam\/v2\/roles', Array, NULL)\n#3 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/rest-api\/class-wp-rest-server.php(439): WP_REST_Server->dispatch(Object(WP_REST_Request))\n#4 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/rest-api.php(459): WP_REST_Server->serve_request('\/aam\/v2\/roles')\n#5 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/class-wp-hook.php(324): rest_api_loaded(Object(WP))\n#6 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/class-wp-hook.php(348): WP_Hook->apply_filters('', Array)\n#7 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/plugin.php(565): WP_Hook->do_action(Array)\n#8 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/class-wp.php(418): do_action_ref_array('parse_request', Array)\n#9 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/class-wp.php(818): WP->parse_request('')\n#10 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-includes\/functions.php(1342): WP->main('')\n#11 \/home\/wp_ftba6z\/marwal159.dream.press\/wp-blog-header.php(16): wp()\n#12 \/home\/wp_ftba6z\/marwal159.dream.press\/index.php(17): require('\/home\/wp_ftba6z...')\n#13 {main}\n  thrown",
            "file": "\/home\/wp_ftba6z\/marwal159.dream.press\/wp-content\/plugins\/advanced-access-manager\/application\/Restful\/Roles.php",
            "line": 366
        }
    },
    "additional_errors": []
}