Plugin does not work anymore

[Skytillan]

Hi, it worked all the time without any problems, now nothing happens after I changed the Server - but the URL, etc. did not change. I tried to reinstall it, to deinstall it and enable it from scratch.

I tried these solutions:
1.) change webhook link from discord.com to discordapp.com
2.) changed it to if (preg_match('/^\s*https?://(ptb.)?discord.com/api/webhooks//i', $webhookurl) == 0) {

(of course, I tried both solutions separate)

Any other ideas?

[maciejnierzwicki]

Hi, you need to enable mb_strlen() function in PHP. This plugin throws errors caused by call to "unexisting" function, this can be seen in apache (or any other web server) error logs.
You can fix this by entering following command in your server terminal:
sudo apt install php-mbstring