Stalkfish uses WordPress Application Passwords to connect to your site which gives it seamless access to perform certain activities on your site. Currently, it performs the following actions:

• Installing the plugin during site setup
• Setting up the Stalkfish API key on your site

There are some plugins that disable application passwords by default. Here’s how to re-enable them:

Wordfence

Head to Wordfence > All Options > Firewall Options > Brute Force Protection, and uncheck Disable WordPress application passwords option. You may also refer to this video to see how it can be disabled: