Asterisk broken after kernel upgrade

I upgraded my kernel to 2.6.18-6-686 (on Debian 4) and since the upgrade I don’t have the zap channels any more. I recompiled zaptel(1.4) and asterisk (1.4.22) whitout any errors and i get the folowing message in the logs:
channel.c:3051 ast_request: No channel type registered for ‘Zap’