apachetop. problems with fam

Hello all, i have installed apachetop to look at my webserver, as well the required dependencies. But when i want to start apachetop this error messages comes up: cannot connect to fam: Address already in use fam version is: fam-2.6.10-36 who starts fam (the File Alteration Monitor)? And how can i get a running apachetop? Have anyone a idea... regards