I am receiving the message: PHP Warning: Constant WP_FAIL2BAN_BLOCK_USER_ENUMERATION already defined in wp-config.php
I have the FAIL"BAN_Proxies defined one line underneath that and I don’t get an error for THAT definition.
I checked to make sure the definitions are above the line that says: /* That's all, stop editing! Happy publishing. */
No, I was not able to resolve this. I decided to ignore it since and in the meantime deleted the plugin alltogether. Now I am again looking into setting up wp-fail2ban and the message is again there.