pauljmartinez

I’m also seeing a similar issue.

<b>Fatal error</b>:  Uncaught Exception: Invalid characters in the base32 string. in ./com.instacart/wp-content/plugins/wp-2fa/includes/classes/Authenticator/class-authentication.php:291
Stack trace:
#0 ./wp-content/plugins/wp-2fa/includes/classes/Authenticator/class-authentication.php(255): WP2FA\Authenticator\Authentication::base32_decode('\x85\xC8\x14\xA5Y\xD1O\xC19M/5\xE0\xBE\xC1...')
#1 ./wp-content/plugins/wp-2fa/includes/classes/Authenticator/class-authentication.php(234): WP2FA\Authenticator\Authentication::calc_totp('\x85\xC8\x14\xA5y\xD1o\xC19M/5\xE0\xBE\xC1...', 55459830.366667)
#2 ./wp-content/plugins/wp-2fa/includes/classes/Authenticator/class-login.php(903): WP2FA\Authenticator\Authentication::is_valid_authcode('\x85\xC8\x14\xA5y\xD1o\xC19M/5\xE0\xBE\xC1...', '514482')
#3 ./wp-content/plugins/wp-2fa/includes/classes/Authenticator/class-login.php(719): WP2FA\Authenticator\Login::vali in <b>./wp-content/plugins/wp-2fa/includes/classes/Authenticator/class-authentication.php</b> on line <b>291</b><br />

I’m in a similar situation. Brand new install of 2.01, PHP Version 4.2.3, Apache/1.3.33 (Unix) mod_tsunami/3.0 FrontPage/5.0.2.2634, at Hostway (https://www.hostway.com).

All of my admin, configuration, dashboard, writing, and managing screens work fine. If I try to view the site I get a 500 error regardless of the selected permalink structure.

Took a look at the bug list for 2.01 and did not see anything there.
https://trac.www.ads-software.com/report/2

I see that a few others are having the same issue so I hope this helps.