Error when mbstring extension is not installed

[DanWin]

trafficstars

Hi its just to lets you know i love your chat i have installed it + 10 time in the past with php 7.4 but actually when we try to install it with 8.2 its do a White page on our hidden service tor its not possible to access to the chat and the error in apache error log say PHP Fatal error: Uncaught error :Call to undefined function mb_internal_encoding() in /var/www/html/chat/chat.php its say the error from chat.php file i think its say its on line 4815

can you repair it please thank you and update the github page

[DanWin]

it looks like you don't have the mbstring extension installed. Just install the PHP extension and it should be working