paypal checkout

Hi
I use this theme for 2 years
so, my app and api work well untill, i have changed hosting and update theme version to lastest version.

now i got error in step 2 paypal checkout (only production, it work well on sandbox)
with this error code

Fatal error: Uncaught PayPal\Exception\PPConnectionException: Could not resolve host: AdaptivePayments in /srv/users/serverpilot/apps/dreamdriveproject/public/wp-content/themes/fundingpress/funding/lib/paypal/paypal-sdk-core-php-811c13c/lib/PayPal/Core/PPHttpConnection.php:95 Stack trace: #0 /srv/users/serverpilot/apps/dreamdriveproject/public/wp-content/themes/fundingpress/funding/lib/paypal/paypal-sdk-core-php-811c13c/lib/PayPal/Core/PPAPIService.php(73): PayPal\Core\PPHttpConnection->execute(‘requestEnvelope…’) #1 /srv/users/serverpilot/apps/dreamdriveproject/public/wp-content/themes/fundingpress/funding/lib/paypal/paypal-sdk-core-php-811c13c/lib/PayPal/Core/PPBaseService.php(65): PayPal\Core\PPAPIService->makeRequest(‘Preapproval’, Object(PayPal\Core\PPRequest)) #2 /srv/users/serverpilot/apps/dreamdriveproject/public/wp-content/themes/fundingpress/funding/lib/paypal/paypal-adaptivepayments-sdk-php-1d55682/lib/PayPal/Service/AdaptivePaymentsService.php(256): PayPal\Core\PPBaseService->call(‘AdaptivePayment…’, ‘Prea in /srv/users/serverpilot/apps/dreamdriveproject/public/wp-content/themes/fundingpress/funding/lib/paypal/paypal-sdk-core-php-811c13c/lib/PayPal/Core/PPHttpConnection.php on line 95

what is the problem?
and how to solve it?