PHP and Stripe error

our website link is
https://www.sandpipersrestaurant.com.au/

after the latest update of GravityFroms and Stripe plugin we are starting to get an error
here is the server PHP error
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[04-Sep-2022 23:39:53 UTC] PHP Notice: An outdated add-on or custom code is attempting to access the wp_rg_lead_detail table which is not valid in this version of Gravity Forms. Update your add-ons and custom code to prevent loss of form data. Further details: https://docs.gravityforms.com/database-storage-structure-reference/#changes-from-gravity-forms-2-2 in /home/yabwezt/public_html/wp-content/plugins/gravityforms/gravityforms.php on line 6597
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And the stripe error is
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Fatal error: Uncaught Error: Class 'Stripe\StripeClient' not found in /home/yabwezt/public_html/wp-content/plugins/gravityformsstripe/includes/class-gf-stripe-api.php:55 Stack trace: #0 /home/yabwezt/public_html/wp-content/plugins/gravityformsstripe/class-gf-stripe.php(4948): GF_Stripe_API->__construct('sk_live_51GFsE1...') #1 /home/yabwezt/public_html/wp-content/plugins/gravityformsstripe/class-gf-stripe.php(4789): GFStripe->include_stripe_api('live', Array) #2 /home/yabwezt/public_html/wp-content/plugins/gravityformsstripe/class-gf-stripe.php(5759): GFStripe->get_stripe_account(Array, 'live') #3 /home/yabwezt/public_html/wp-content/plugins/gravityformsstripe/class-gf-stripe.php(1009): GFStripe->is_stripe_auth_valid(Array, 'live') #4 [internal function]: GFStripe->settings_auth_token_button(Object(Gravity_Forms\Gravity_Forms\Settings\Fields\Base), false) #5 /home/yabwezt/public_html/wp-content/plugins/gravityforms/includes/settings/fields/class-base.php(215): call_user_func(Array, Object(Gravity_Forms\Gravity_Forms\Setti in /home/yabwezt/public_html/wp-content/plugins/gravityformsstripe/includes/class-gf-stripe-api.php on line 55

The page I need help with: [log in to see the link]