Maybe these server logs will help?
[05-May-2025 18:47:24 Europe/London] PHP Fatal error: Uncaught TypeError: strpos(): Argument #1 ($haystack) must be of type string, WP_Error given in /home/xxxxxxx/public_html/wp-content/plugins/wppromembership/src/Auth/AuthManager.php:272
Stack trace:
#0 /home/xxxxxxx/public_html/wp-content/plugins/wppromembership/src/Auth/AuthManager.php(272): strpos(Object(WP_Error), ':/')
#1 /home/xxxxxxx/public_html/wp-includes/class-wp-hook.php(324): WPDM\WPPM\Auth\AuthManager->download('')
#2 /home/xxxxxxx/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#3 /home/xxxxxxx/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#4 /home/xxxxxxx/public_html/wp-settings.php(727): do_action('init')
#5 /home/xxxxxxx/public_html/wp-config.php(105): require_once('/home/xxxxxxx...')
#6 /home/xxxxxxx/public_html/wp-load.php(50): require_once('/home/xxxxxxx...')
#7 /home/xxxxxxx/public_html/wp-blog-header.php(13): require_once('/home/xxxxxxx...')
#8 /home/xxxxxxx/public_html/index.php(17): require('/home/xxxxxxx...')
#9 {main}
thrown in /home/xxxxxxx/public_html/wp-content/plugins/wppromembership/src/Auth/AuthManager.php on line 272
[05-May-2025 18:47:25 Europe/London] WordPress database error Column 'oid' cannot be null for query INSERT INTO <code>wp_ahm_download_stats</code> (<code>pid</code>, <code>uid</code>, <code>oid</code>, <code>year</code>, <code>month</code>, <code>day</code>, <code>timestamp</code>, <code>ip</code>, <code>filename</code>, <code>agent</code>, <code>version</code>, <code>type</code>) VALUES ('966', '6349', NULL, '2025', '05', '05', '1746467245', '85.134.202.60', '', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36', '', 'package') made by require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, WPDM\WPPM\Auth\AuthManager->download, WPDM\__\DownloadStats->add
[05-May-2025 18:47:26 Europe/London] PHP Warning: Undefined variable $package in /home/xxxxxxx/public_html/wp-content/plugins/wppromembership/src/Auth/AuthManager.php on line 300
[05-May-2025 17:56:07 GMT] PHP Warning: Undefined array key "resource_version" in /home/xxxxxxx/public_html/wp-content/plugins/wppromembership/src/Payment/PayPal/PayPalWebhookHandler.php on line 29
[05-May-2025 17:56:07 GMT] WordPress database error Unknown column '99Y39692WC618520Y' in 'where clause' for query SELECT * FROM wp_wppm_invoices WHERE <code>payment_system_invoice_id</code> = 99Y39692WC618520Y made by require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, WPDM\WPPM\Payment\WebhookListener->listen, WPDM\WPPM\Payment\PayPal\PayPalWebhookHandler->handle, WPDM\WPPM\Invoice\Invoice::getByPaymentSystemInvoiceId
[05-May-2025 20:08:26 GMT] PHP Warning: Undefined array key "resource_version" in /home/xxxxxxx/public_html/wp-content/plugins/wppromembership/src/Payment/PayPal/PayPalWebhookHandler.php on line 29
