Getting the error “Disallowed Key Characters” ? This error was caused by developing locally on my machine (127.0.0.1) with xampp, i used the windows host file to re-direct halodev.snaver.net to my local web server for development. However when i switched to developing online, i removed the host file config for the domain and then upload my website to my server, this is when i got the error.
To fix i had to clear my cookies, i believe it was a cookie problem as i also changed my unique $config['encryption_key'] in the config file.
