I was able to reproduce the notices in wpdm-login-form.php on a fresh install:
PHP 7.3
WP 5.2.4
Download Manager 5.0.2
WPDM Archive Page 3.0.1
WPDM Default Values 1.7.1
Set up a page with the shortcode [wpdm-archive button_style="default" items_per_page="20" order_by="title" order="asc" login=1]. Visiting this page causes the notices.
With the Query Monitor plugin active I’m also getting PHP Errors in Ajax Response on the backend:
On Settings -> Updates
{…}
component: "Plugin: download-manager"
file: "wp-content/plugins/download-manager/admin/tpls/settings/addon-update.php"
line: 78
message: "Undefined index: download-after-submit"
stack: Array(3) [ "WPDM\\a\\m\\Settings->pluginUpdate()", "WPDM\\a\\m\\Settings->loadSettingsPage()", "do_action('wp_ajax_wpdm_settings')" ]
type: "notice"
<prototype>: Object { … }
query-monitor.js:324:14
{…}
component: "Plugin: download-manager"
file: "wp-content/plugins/download-manager/admin/tpls/settings/addon-update.php"
line: 78
message: "Undefined index: wpdm_api"
stack: Array(3) [ "WPDM\\a\\m\\Settings->pluginUpdate()", "WPDM\\a\\m\\Settings->loadSettingsPage()", "do_action('wp_ajax_wpdm_settings')" ]
type: "notice"
<prototype>: Object { … }
query-monitor.js:324:14
{…}
component: "Plugin: download-manager"
file: "wp-content/plugins/download-manager/admin/tpls/settings/addon-update.php"
line: 78
message: "Undefined index: multilevel-marketing"
stack: Array(3) [ "WPDM\\a\\m\\Settings->pluginUpdate()", "WPDM\\a\\m\\Settings->loadSettingsPage()", "do_action('wp_ajax_wpdm_settings')" ]
type: "notice"
<prototype>: Object { … }
query-monitor.js:324:14
On Settings -> Frontend Access:
{…}
component: "Plugin: download-manager"
file: "wp-content/plugins/download-manager/admin/tpls/settings/frontend.php"
line: 127
message: "in_array() expects parameter 2 to be array, bool given"
stack: Array(4) [ "in_array()", "WPDM\\a\\m\\Settings->Frontend()", "WPDM\\a\\m\\Settings->loadSettingsPage()", … ]
type: "warning"
<prototype>: Object { … }
query-monitor.js:324:14
