Magento 2 commands
Go to core_config_data table in the database. Find the path msp_securitysuite_recaptcha/backend/enabled put its value as 0 Clean the Cache..
If it doesn’t solve the problem use the terminal and type the following commands –
Disable Recaptcha from admin and frontend.
php bin/magento config:set admin/captcha/enable 0
php bin/magento config:set customer/captcha/enable 0