Unable to activate Opayo payment suite after upgrade to 9.7

After the woocommerce upgrade to 9.7, I am unable to activate our payment gateway. I have contacted woocommerce and the author of the opayo plugin but as yet no response. I just wondered if anyone else had the same problem.

When activating the opayo plug-in I get the following error and then the website goes into critical state and I need to go through recovery mode to deactivate the plug-in. I have deactivated all plugins and reactivated them to find that the opayo/woocommerce are the ones causing the problem.

The following critical error shows:

2025-02-26T09:56:19+00:00 Critical Uncaught TypeError: strpos() expects parameter 1 to be string, null given in /var/site-name/wp-content/plugins/woocommerce/src/Internal/Admin/WcPayWelcomePage.php:136?

Additional context

{

??? "error": {

??????? "type": 1,

??????? "file": "/var/www/site-name/wp-content/plugins/woocommerce/src/Internal/Admin/WcPayWelcomePage.php",

??????? "line": 136

??? },

??? "remote-logging": true,

??? "backtrace": [

??????? "",

??????? "#0 /var/www/site-name/wp-content/plugins/woocommerce/src/Internal/Admin/WcPayWelcomePage.php(136): strpos()",

??????? "#1 /var/www/site-name/wp-includes/class-wp-hook.php(324): Automattic\WooCommerce\Internal\Admin\WcPayWelcomePage->register_menu_and_page()",

??????? "#2 /var/www/site-name/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()",

??????? "#3 /var/www/site-name/wp-includes/plugin.php(517): WP_Hook->do_action()",

??????? "#4 /var/www/site-name/wp-admin/includes/menu.php(161): do_action()",

??????? "#5 /var/www/site-name/wp-admin/menu.php(412): require_once('/var/www/ site-name...')",

??????? "#6 /var/www/site-name/wp-admin/admin.php(158): require('/var/www/site-name...')",

??????? "#7 /var/www/site-name/wp-admin/edit.php(10): require_once('/var/www/ site-name...')",

??????? "#8 {main}",

??????? "thrown"

??? ]

}