https://www.php.net/manual/en/security.magicquotes.php
https://www.php.net/manual/en/function.get-magic-quotes-gpc.php

Regards.

Joe

Your PHP version must be 7.4. From this version the get_magic_quotes_gpc was deprecated. And there is no alternative to use it. So lets take out the code and make it work on. This function available inside session.inc and isession.inc.

function strip_quotes($data)
{
    if(get_magic_quotes_gpc()) {
        if(is_array($data)) {
            foreach($data as $k => $v) {
                $data[$k] = strip_quotes($data[$k]);
            }
            return $data;
        } else
            return stripslashes($data);
    }
   
}

And just remove the if condition like this

function strip_quotes($data)
{
        if(is_array($data)) {
            foreach($data as $k => $v) {
                $data[$k] = strip_quotes($data[$k]);
            }
           return $data;
        } else
            return stripslashes($data);
    
    
}

.

Hope it will fix your problem to work on.  if its fixed just reply to this conversation, @joe will update to the core.

while upgrading the php version from 5.6 to 7.0 it is giving error get_magic_quotes_gpc is depreciated.

Regards,
Zia