Hi, i'm changing my Stripe account and i am updating all the data inside the Payment gateways. 

I also entered the test data of the new stripe account (test mode) but unfortunately the test payment is not successful.
I manage to sign up and reach the checkout page but when I enter the data of the dummy credit card instead of processing the payment correctly I get the message
"A processing error has occurred."
In Stripe (test) the customer is registered, but the payment remains "Not completed" and the information shows "The customer has not entered the payment method." (PaymentIntent Status log:
requires_payment_method)

In the CBsubs error log I have several warnings (about 15) of this type:
NOTICE: Trying to access array offset on value of type null in /home2/zwlifein/public_html/plugins/system/nrframework/NRFramework/SmartTags.php on line 147
Trace:called in class cbpaidErrorHandler::_error_handler_callable(8, "Trying to access array offset on value of type null", "/home2/zwlifein/public_html/plugins/system/nrframework/NRFramework/SmartTags.php", 147, array( )) on line 147 in file SmartTags.php
called in class NRFramework\SmartTags::addTechnologyTags() on line 110 in file SmartTags.php
called in class NRFramework\SmartTags::addDefaultTags() on line 432 in file SmartTags.php
called in class NRFramework\SmartTags::prepare() on line 370 in file SmartTags.php
called in class NRFramework\SmartTags::replace(object(stdClass)) on line 41 in file smarttags.php
called in class plgEngageBoxSmartTags::onEngageBoxAfterRender(object(stdClass)) on line 70 in file event.php
called in class JEvent::update(array(0 => object(stdClass))) on line 160 in file dispatcher.php
called in class JEventDispatcher::trigger("onengageboxafterrender", array(0 => object(stdClass))) on line 108 in file BaseApplication.php
called in class Joomla\CMS\Application\BaseApplication::triggerEvent("onEngageBoxAfterRender", array(0 => object(stdClass))) on line 380 in file helper.php
called in class EBHelper::getBoxes() on line 78 in file rstbox.php
called in class PlgSystemRstBox::onAfterDispatch() on line 70 in file event.php
called in class JEvent::update(array()) on line 160 in file dispatcher.php
called in class JEventDispatcher::trigger("onafterdispatch", array()) on line 108 in file BaseApplication.php
called in class Joomla\CMS\Application\BaseApplication::triggerEvent("onAfterDispatch") on line 199 in file SiteApplication.php
called in class Joomla\CMS\Application\SiteApplication::dispatch() on line 233 in file SiteApplication.php
called in class Joomla\CMS\Application\SiteApplication::doExecute() on line 225 in file CMSApplication.php
called in class Joomla\CMS\Application\CMSApplication::execute() on line 49 in file index.php
$_GET = array (
   'option' => 'com_comprofiler',
   'view' => 'pluginclass',
   'plugin' => 'cbpaidsubscriptions',
   'cbpact' => 'showbskt',
   'cbpbskt' => '1066',
   'cbpbck' => '67684a6107a7d6f6c100df7d8055ca28e8333af6005ac42b5700a22b',
   'itemid' => '331',
   'task' => 'pluginclass',
)
$_POST = array (
)




Call trace:
called in class cbpaidHistory::logError() on line 279 in file cbpaidErrorHandler.php
called in class cbpaidErrorHandler::_error_handler_callable() on line 147 in file SmartTags.php
called in class NRFramework\SmartTags::addTechnologyTags() on line 110 in file SmartTags.php
called in class NRFramework\SmartTags::addDefaultTags() on line 432 in file SmartTags.php
called in class NRFramework\SmartTags::prepare() on line 370 in file SmartTags.php
called in class NRFramework\SmartTags::replace() on line 41 in file smarttags.php
called in class plgEngageBoxSmartTags::onEngageBoxAfterRender() on line 70 in file event.php
called in class JEvent::update() on line 160 in file dispatcher.php
called in class JEventDispatcher::trigger() on line 108 in file BaseApplication.php
called in class Joomla\CMS\Application\BaseApplication::triggerEvent() on line 380 in file helper.php
called in class EBHelper::getBoxes() on line 78 in file rstbox.php
called in class PlgSystemRstBox::onAfterDispatch() on line 70 in file event.php
...

Do you know what can be wrong?
Thanks
Leonardo

Thanks Krileon,
i'm using onsite form but i don't understand what "no payment method used" means. Everything was working fine on the previous account.
Do you know what can it be?

As for the error notice, i will check that system plugin.
Thanks

Thanks Krileon,
Card method was enabled on the test mode.
Anyway i solved switching from onsite mode to Stripe Checkout: that is working fine

For me it is fine with that mode too