Hello guys, I've looked everywhere and still can't find a fix for this, so let's see if you guys can help me out. I have a Debian server running ISPConfig 3.2.7p1, it's running on a multiserver setup following the perfect server setup. A few months after it was setup I added a second PHP version to it (followed the tutorial from howtoforge and made the same process on one of the slave servers) but for some reason I cannot use PHP Curl on this server, every time I try to use it I have the same error: PHP7.2 /opt/php-7.2/bin/php-cgi: /usr/lib/x86_64-linux-gnu/libcurl.so.4: version `CURL_OPENSSL_3' not found (required by /opt/php-7.2/bin/php-cgi) PHP 7.3 /opt/php-7.3/bin/php-cgi: /usr/lib/x86_64-linux-gnu/libcurl.so.4: version `CURL_OPENSSL_3' not found (required by /opt/php-7.3/bin/php-cgi) And if i try to use it on PHP 5.6 Call to undefined function curl_init() packages currently installed: php-curl is already the newest version (2:7.3+69). php7.3-curl is already the newest version (7.3.31-1~deb10u1). I've found suggestions to uninstall libcurl4 and install libcurl3 but I get this Package libcurl3 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: libcurl4 E: Package 'libcurl3' has no installation candidate Any idea on how to fix this? If you need more information please let me know.