I have several suggestions, first off...kppp is not very good at getting a fresh install up & running, I could sit here & type a novel on modems & linux systems but I'd rather point in the right direction. Go to this site & download scanModem, http://linmodems.technion.ac.il/first.html
follow instructions on this web page to use it, it will print 7 pages or so in the directory where you put the utility scanModem. In the ModemData.txt page you will find a section that tells you to unpack certain ppp related modules that may still be in compressed form in the file system that normally should be unpacked during the installation of kppp & or wvdial but as in my case they were not unpacked & I had to do it manually as per instructions givin' in the ModemData.txt. There will be a page called Testing.txt which will tell you to install wvdial which may already be installed on your system and it will tell you how to set it up and use it, it is better than kppp. In short you will run wvdial to produce a configuration file in /etc/wvdial.conf, then you have to use a text editor to add vital info such as phone #, user name, password to connect to your isp account, and you have to omit ; in front of the words Phone#, User name and Password. Then you will run wvdial again & hopefully it will connect.
The reason for the ppp daemon dieing is probably because the ppp module failed to load or similar, in a console type $ man pppd or $ man kppp ( forgot what I did but something similar )to see what the error code suggests.
I tried for two weeks to get my internal modem working with code from the modem manufacturer to no avail & finally did what most will suggest and used a serial modem I also had, it got the same message except error code 4 in kppp, for some reason...the only way I ever got the ppp module to load was to go through the procedure of installing my internal modem which wouldn't work anyway but that's what it took to get ppp module loaded for using the serial modem, I only had to go through the motions of compiling the internal modem once then the serial modem worked every time I tried to hook up after that...go figure?