Magento – Magento 2.3.2 Undefined offset Encryptor.php

Magento 2.3.2 community edition
Nginx 1.16
PHP 7.2.19

Steps to reproduce (*)
1.login magento store admin

{"0":"Notice: Undefined offset: 2 in
/www/web/demo/vendor/magento/framework/Encryption/Encryptor.php on
line 588"#1 Magento\Framework\Encryption\Encryptor->getArgonHash()
called at [vendor/magento/framework/Encryption/Encryptor.php:278]\n#2
Magento\Framework\Encryption\Encryptor->isValidHash() called at
[vendor/magento/framework/Encryption/Encryptor.php:266]\n#3
Magento\Framework\Encryption\Encryptor->validateHash() called at
[vendor/magento/module-user/Model/User.php:608]\n#4
Magento\User\Model\User->verifyIdentity() called at
[generated/code/Magento/User/Model/User/Interceptor.php:206]\n#5
Magento\User\Model\User\Interceptor->verifyIdentity() called at
[vendor/magento/module-user/Model/User.php:580]\n#6
Magento\User\Model\User->authenticate() called at
[vendor/magento/framework/Interception/Interceptor.php:58]\n#7
Magento\User\Model\User\Interceptor->___callParent() called at
[vendor/magento/framework/Interception/Interceptor.php:138]\n#8
Magento\User\Model\User\Interceptor->Magento\Framework\Interception{closure}()
called at
[vendor/mirasvit/module-event/src/Event/Event/Admin/LoginEvent.php:135]\n#9
Mirasvit\Event\Event\Admin\LoginEvent->aroundAuthenticate() called at
[vendor/magento/framework/Interception/Interceptor.php:135]\n#10
Magento\User\Model\User\Interceptor->Magento\Framework\Interception{closure}()
called at
[vendor/magento/framework/Interception/Interceptor.php:153]\n#11
Magento\User\Model\User\Interceptor->___callPlugins() called at
[generated/code/Magento/User/Model/User/Interceptor.php:195]\n#12
Magento\User\Model\User\Interceptor->authenticate() called at
[vendor/magento/module-user/Model/User.php:635]\n#13
Magento\User\Model\User->login() called at
[generated/code/Magento/User/Model/User/Interceptor.php:219]\n#14
Magento\User\Model\User\Interceptor->login() called at
[vendor/magento/module-backend/Model/Auth.php:162]\n#15
Magento\Backend\Model\Auth->login() called at
[vendor/magento/framework/Interception/Interceptor.php:58]\n#16
Magento\Backend\Model\Auth\Interceptor->___callParent() called at
[vendor/magento/framework/Interception/Interceptor.php:138]\n#17
Magento\Backend\Model\Auth\Interceptor->Magento\Framework\Interception{closure}()
called at
[vendor/magento/framework/Interception/Interceptor.php:153]\n#18
Magento\Backend\Model\Auth\Interceptor->___callPlugins() called at
[generated/code/Magento/Backend/Model/Auth/Interceptor.php:78]\n#19
Magento\Backend\Model\Auth\Interceptor->login() called at
[vendor/magento/module-backend/App/Action/Plugin/Authentication.php:205]\n#20
Magento\Backend\App\Action\Plugin\Authentication->_performLogin()
called at
[vendor/magento/module-backend/App/Action/Plugin/Authentication.php:157]\n#21
Magento\Backend\App\Action\Plugin\Authentication->_processNotLoggedInUser()
called at
[vendor/magento/module-backend/App/Action/Plugin/Authentication.php:125]\n#22
Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch()
called at
[vendor/magento/framework/Interception/Interceptor.php:135]\n#23
Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor->Magento\Framework\Interception{closure}()
called at
[vendor/magento/framework/Interception/Interceptor.php:153]\n#24
Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor->___callPlugins()
called at
[generated/code/Magento/Backend/Controller/Adminhtml/Index/Index/Interceptor.php:39]\n#25
Magento\Backend\Controller\Adminhtml\Index\Index\Interceptor->dispatch()
called at [vendor/magento/framework/App/FrontController.php:159]\n#26
Magento\Framework\App\FrontController->processRequest() called at
[vendor/magento/framework/App/FrontController.php:99]\n#27
Magento\Framework\App\FrontController->dispatch() called at
[vendor/magento/framework/Interception/Interceptor.php:58]\n#28
Magento\Framework\App\FrontController\Interceptor->___callParent()
called at
[vendor/magento/framework/Interception/Interceptor.php:138]\n#29
Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception{closure}()
called at
[vendor/magento/framework/Interception/Interceptor.php:153]\n#30
Magento\Framework\App\FrontController\Interceptor->___callPlugins()
called at
[generated/code/Magento/Framework/App/FrontController/Interceptor.php:26]\n#31
Magento\Framework\App\FrontController\Interceptor->dispatch() called
at [vendor/magento/framework/App/Http.php:137]\n#32
Magento\Framework\App\Http->launch() called at
[generated/code/Magento/Framework/App/Http/Interceptor.php:24]\n#33
Magento\Framework\App\Http\Interceptor->launch() called at
[vendor/magento/framework/App/Bootstrap.php:261]\n#34
Magento\Framework\App\Bootstrap->run() called at
[pub/index.php:40]\n","url":"/m_demo/admin/index/index/key/ed11bf3331221182a6/","script_name":"/index.php"}