Error when trying to register as new customer

[xls2802]

Magento 2.4.7-p3
Issue 1 when trying to register user

`1 exception(s):
Exception #0 (Exception): Deprecated Functionality: Creation of dynamic property ManishJoy\CustomerLogin\Controller\Ajax\Register\Interceptor::$customerSession is deprecated in /var/www/html/app/code/ManishJoy/CustomerLogin/Controller/Ajax/Register.php on line 80

Exception #0 (Exception): Deprecated Functionality: Creation of dynamic property ManishJoy\CustomerLogin\Controller\Ajax\Register\Interceptor::$customerSession is deprecated in /var/www/html/app/code/ManishJoy/CustomerLogin/Controller/Ajax/Register.php on line 80

#1 ManishJoy\CustomerLogin\Controller\Ajax\Register->__construct() called at [generated/code/ManishJoy/CustomerLogin/Controller/Ajax/Register/Interceptor.php:14]
#2 ManishJoy\CustomerLogin\Controller\Ajax\Register\Interceptor->__construct() called at [vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:121]
#3 Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject() called at [vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php:66]
#4 Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create() called at [vendor/magento/framework/ObjectManager/ObjectManager.php:59]
#5 Magento\Framework\ObjectManager\ObjectManager->create() called at [vendor/magento/framework/App/ActionFactory.php:44]
#6 Magento\Framework\App\ActionFactory->create() called at [vendor/magento/framework/App/Router/Base.php:306]
#7 Magento\Framework\App\Router\Base->matchAction() called at [vendor/magento/framework/App/Router/Base.php:167]
#8 Magento\Framework\App\Router\Base->match() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#9 Magento\Framework\App\Router\Base\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#10 Magento\Framework\App\Router\Base\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#11 Magento\Framework\App\Router\Base\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/Router/Base/Interceptor.php:23]
#12 Magento\Framework\App\Router\Base\Interceptor->match() called at [vendor/magento/framework/App/FrontController.php:144]
#13 Magento\Framework\App\FrontController->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#14 Magento\Framework\App\FrontController\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#15 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-store/App/FrontController/Plugin/RequestPreprocessor.php:99]
#16 Magento\Store\App\FrontController\Plugin\RequestPreprocessor->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#17 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-page-cache/Model/App/FrontController/BuiltinPlugin.php:72]
#18 Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#19 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#20 Magento\Framework\App\FrontController\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:23]
#21 Magento\Framework\App\FrontController\Interceptor->dispatch() called at [vendor/magento/framework/App/Http.php:116]
#22 Magento\Framework\App\Http->launch() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#23 Magento\Framework\App\Http\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#24 Magento\Framework\App\Http\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-application-performance-monitor/Plugin/ApplicationPerformanceMonitor.php:38]
#25 Magento\ApplicationPerformanceMonitor\Plugin\ApplicationPerformanceMonitor->aroundLaunch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#26 Magento\Framework\App\Http\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#27 Magento\Framework\App\Http\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/Http/Interceptor.php:23]
#28 Magento\Framework\App\Http\Interceptor->launch() called at [vendor/magento/framework/App/Bootstrap.php:264]
#29 Magento\Framework\App\Bootstrap->run() called at [pub/index.php:30]

`