I am having an issue with EasyStore during checkout with PayPal.

JoomShaper\Plugin\EasyStore\Paypal\Utils\PaypalApi::getAccessToken(): Return value must be of type string, null returned

It appears when you fill out the information and click the "pay Now" button

I have checked the keys from PayPal and the Mod Security at the server level

https://new.fireclawinc.com/ Joomla 5.4.0 PHP 8.3 SP Page Builder 6.0 Template : Helix Ultimate Easy Store 1.7.2