There has been an error processing your request. Can’t sign in to magento2 admin panel

Dear People, 

 

I tried to install an extension for magento2 from the admin panel and it wasn’t able to pass the readiness check. I realised that I had php 7.1 and not 7.2. I removed 7.1 and installed 7.2 and that’s where the problem began. Bear in mind that I have magento2 installed on a VPS. I fixed most of the issues, as the Luma frontend is working (except for the search as it gives the following error) and I can also see the admin panel, but once I enter my credentials and press login, it displays:

 

There has been an error processing your request

 

Exception printing is disabled by default for security reasons.

Error log record number: d30f145de40498f5e3d207d31704d784fe721953c222e44dd93beb88cfae3e5f

 

I tried the solutions posted in one of the earlier topics, however, it was all in vain. I checked for the error report under var/report in the magento folder and it was as below:

 

{“0″:”Image CAPTCHA requires GD extension”,”1″:”#1 Magento\Captcha\Model\DefaultModel->__construct(&Magento\Backend\Model\Auth\Session\Interceptor#00000000499150410000000065561836#, &Magento\Captcha\Helper\Adminhtml\Data#00000000499152190000000065561836#, &Magento\Captcha\Model\ResourceModel\LogFactory#00000000499152180000000065561836#, ‘backend_login’, NULL) called at [vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:121]n#2 Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject(‘Magento\Captcha\…’, array(&Magento\Backend\Model\Auth\Session\Interceptor#00000000499150410000000065561836#, &Magento\Captcha\Helper\Adminhtml\Data#00000000499152190000000065561836#, &Magento\Captcha\Model\ResourceModel\LogFactory#00000000499152180000000065561836#, ‘backend_login’, NULL)) called at [vendor/magento/framework/ObjectManager/Factory/Compiled.php:108]n#3 Magento\Framework\ObjectManager\Factory\Compiled->create(‘Magento\Captcha\…’, array(‘formId’ => ‘backend_login’)) called at [vendor/magento/framework/ObjectManager/ObjectManager.php:56]n#4 Magento\Framework\ObjectManager\ObjectManager->create(‘Magento\Captcha\…’, array(‘formId’ => ‘backend_login’)) called at [vendor/magento/module-captcha/Model/CaptchaFactory.php:37]n#5 Magento\Captcha\Model\CaptchaFactory->create(‘DefaultModel’, ‘backend_login’) called at [vendor/magento/module-captcha/Helper/Data.php:100]n#6 Magento\Captcha\Helper\Data->getCaptcha(‘backend_login’) called at [vendor/magento/module-captcha/Observer/CheckUserLoginBackendObserver.php:53]n#7 Magento\Captcha\Observer\CheckUserLoginBackendObserver->execute(&Magento\Framework\Event\Observer#00000000499152160000000065561836#) called at [vendor/magento/framework/Event/Invoker/InvokerDefault.php:88]n#8 Magento\Framework\Event\Invoker\InvokerDefault->_callObserverMethod(&Magento\Captcha\Observer\CheckUserLoginBackendObserver#000000004991500c0000000065561836#, &Magento\Framework\Event\Observer#00000000499152160000000065561836#) called at [vendor/magento/framework/Event/Invoker/InvokerDefault.php:74]n#9 Magento\Framework\Event\Invoker\InvokerDefault->dispatch(array(‘instance’ => ‘Magento\Captcha\…’, ‘name’ => ‘captcha’), &Magento\Framework\Event\Observer#00000000499152160000000065561836#) called at [vendor/magento/framework/Event/Manager.php:66]n#10 Magento\Framework\Event\Manager->dispatch(‘admin_user_authe…’, array(‘username’ => ‘admin’, ‘user’ => &Magento\User\Model\User\Interceptor#00000000499153fa0000000065561836#)) called at [generated/code/Magento/Framework/Event/Manager/Proxy.php:95]n#11 Magento\Framework\Event\Manager\Proxy->dispatch(‘admin_user_authe…’, array(‘username’ => ‘admin’, ‘user’ => &Magento\User\Model\User\Interceptor#00000000499153fa0000000065561836#)) called at [vendor/magento/module-user/Model/User.php:579]n#12 Magento\User\Model\User->authenticate(‘admin’, ‘admin123’) called at [vendor/magento/module-user/Model/User.php:639]n#13 Magento\User\Model\User->login(‘admin’, ‘admin123’) called at [vendor/magento/module-backend/Model/Auth.php:162]n#14 Magento\Backend\Model\Auth->login(‘admin’, ‘admin123’) called at [vendor/magento/framework/Interception/Interceptor.php:58]n#15 Magento\Backend\Model\Auth\Interceptor->___callParent(‘login’, array(‘admin’, ‘admin123’)) called at [vendor/magento/framework/Interception/Interceptor.php:138]n#16 Magento\Backend\Model\Auth\Interceptor->Magento\Framework\Interception\{closure}(‘admin’, ‘admin123’) called at [vendor/magento/framework/Interception/Interceptor.php:153]n#17 Magento\Backend\Model\Auth\Interceptor->___callPlugins(‘login’, array(‘admin’, ‘admin123’), array(array(‘security_admin_s…’))) called at [generated/code/Magento/Backend/Model/Auth/Interceptor.php:26]n#18 Magento\Backend\Model\Auth\Interceptor->login(‘admin’, ‘admin123’) called at [vendor/magento/module-backend/App/Action/Plugin/Authentication.php:205]n#19 Magento\Backend\App\Action\Plugin\Authentication->_performLogin(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/module-backend/App/Action/Plugin/Authentication.php:157]n#20 Magento\Backend\App\Action\Plugin\Authentication->_processNotLoggedInUser(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/module-backend/App/Action/Plugin/Authentication.php:125]n#21 Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch(&Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor#00000000499153420000000065561836#, &Closure#00000000499153400000000065561836#, &Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/framework/Interception/Interceptor.php:135]n#22 Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor->Magento\Framework\Interception\{closure}(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/framework/Interception/Interceptor.php:153]n#23 Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor->___callPlugins(‘dispatch’, array(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#), NULL) called at [generated/code/Magento/Backend/Controller/Adminhtml/Index/Index/Interceptor.php:26]n#24 Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor->dispatch(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/framework/App/FrontController.php:159]n#25 Magento\Framework\App\FrontController->processRequest(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#, &Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor#00000000499153420000000065561836#) called at [vendor/magento/framework/App/FrontController.php:99]n#26 Magento\Framework\App\FrontController->dispatch(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/framework/Interception/Interceptor.php:58]n#27 Magento\Framework\App\FrontController\Interceptor->___callParent(‘dispatch’, array(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#)) called at [vendor/magento/framework/Interception/Interceptor.php:138]n#28 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/framework/Interception/Interceptor.php:153]n#29 Magento\Framework\App\FrontController\Interceptor->___callPlugins(‘dispatch’, array(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#), array(array(‘default_store_se…’, ‘page_cache_from_…’, ‘storeCookieValid…’, ‘install’, ‘configHash’))) called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:26]n#30 Magento\Framework\App\FrontController\Interceptor->dispatch(&Magento\Framework\App\Request\Http#00000000499151570000000065561836#) called at [vendor/magento/framework/App/Http.php:116]n#31 Magento\Framework\App\Http->launch() called at [vendor/magento/framework/App/Bootstrap.php:261]n#32 Magento\Framework\App\Bootstrap->run(&Magento\Framework\App\Http\Interceptor#00000000499151ac0000000065561836#) called at [index.php:39]n”,”url”:”/admin_1uw0vf/admin/index/index/key/8b67669096eabcc64651db0d57f5ad8ceb61a2dd080037b01f7a2ebcf21a3bf5/”,”script_name”:”/index.php”,”report_id”:”7ee4b111c80440f95d5c70931358126351dc4400dd4d6324d062d4bf44a4191c”}

 

 

Appreciate if anyone can assist as I am banging my head against the wall to find the solution.