No longer able to have function website w 1.12

Got an email from my site saying

In this case, WordPress caught an error with one of your plugins, Two Factor Authentication.

the website wasn’t functioning at all nor could I login.

I was able to use the recovery mode to get into the website and deactivate the Two Factor Authentication Plugin. The site is up and running now. This was the error that generated the email to me (note “websitename” in the below snippet is a substitute to the actual name of the website.

An error of type E_ERROR was caused in line 52 of the file /home2/websitename/public_html/websitename.com/wp-content/plugins/two-factor-authentication/providers/totp-hotp/loader.php. Error message: Uncaught Error: Call to undefined function wp_salt() in /home2/websitename/public_html/websitename.com/wp-content/plugins/two-factor-authentication/providers/totp-hotp/loader.php:52
Stack trace:
#0 /home2/websitename/public_html/websitename/wp-content/plugins/two-factor-authentication/two-factor-login.php(52): Simba_TFA_Provider_TOTP->__construct(Object(Simba_Two_Factor_Authentication))
#1 /home2/websitename/public_html/websitename.com/wp-content/plugins/two-factor-authentication/two-factor-login.php(1428): Simba_Two_Factor_Authentication->__construct()
#2 /home2/websitename/public_html/websitename.com/wp-settings.php(409): include_once('/home2/websitename...')
#3 /home2/websitename/public_html/websitename.com/wp-config.php(116): require_once('/home2/websitename...')
#4 /home2/websitename/public_html/websitename.com/wp-load.php(50): require_once('/home2/websitename...')
#5 /home2/websitename/public_html/websitename.com/wp-login.php(12): require('/home2/websitename...')
#6 {main}
  thrown

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When seeking help with this issue, you may be asked for some of the following information:
WordPress version 5.8.1
Current theme: Customizr Child (version 1.0.0)
Current plugin: Two Factor Authentication (version 1.12.1)
PHP version 7.4.24

• This topic was modified 3 years, 5 months ago by frustrated999.