Critical error after donation with stripe

Dear all,

I’m writing because I have this problem with GiveWP. After the donation, a critical error appears. The problem is that the page for “successful donation” is not shown, but the donation are processed correctly. If the “successful donation page” is called using the page address, it is displayed correctly.

The error log is: Fatal error: Uncaught Error: Call to undefined function Give\Framework\PaymentGateways\Traits\str_contains() in /web/htdocs/www.a3m.it/home/wp-content/plugins/give/src/Framework/PaymentGateways/Traits/HandleHttpResponses.php:22 Stack trace: #0 /web/htdocs/www.a3m.it/home/wp-content/plugins/give/src/Framework/PaymentGateways/Controllers/GatewayPaymentController.php(73): Give\Framework\PaymentGateways\Controllers\GatewayPaymentController->handleResponse(Object(Give\Framework\Http\Response\Types\RedirectResponse)) #1 /web/htdocs/www.a3m.it/home/wp-content/plugins/give/src/Framework/PaymentGateways/Controllers/GatewayPaymentController.php(41): Give\Framework\PaymentGateways\Controllers\GatewayPaymentController->handleGatewayCommand(Object(Give\Framework\PaymentGateways\Commands\PaymentComplete), Object(Give\Donations\Models\Donation)) #2 /web/htdocs/www.a3m.it/home/wp-content/plugins/give/src/LegacyPaymentGateways/Adapters/LegacyPaymentGatewayAdapter.php(126): Give\Framework\PaymentGateways\Controllers\GatewayPaymentControlle in?/web/htdocs/www.a3m.it/home/wp-content/plugins/give/src/Framework/PaymentGateways/Traits/HandleHttpResponses.php?on line?22

The plugin is updated as well as the database.

How can I solve the problem?

Kind regards, Stefano

P.S. The site is in italian, sorry

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