[Serusers] Radius Module acc_radius.so Loading Problem

Hello Serusers, After deploying the binary distribution of SER 0.9.3 for Debian from the repository "deb http://apt.sip-router.org/debian/ stable main contrib non-free" I was able to install the RADIUS based AUTH against a FreeRADIUS server. However after loading the acc_radius.so module I encounter module loading errors as in: # WARNING: no fork mode and more than one listen address found(will use only the the first one) stateless - initializing textops - initializing acc - initializing ERROR: error while initializing modules # No other errors are encountered for "ser -c". When I remove the module acc_radius.so, everything is OK again and AUTH works fine against the RADIUS server. My ser.cfg for the modules looks like: # # ------------------ module loading ---------------------------------- loadmodule "/usr/lib/ser/modules/sl.so" loadmodule "/usr/lib/ser/modules/tm.so" loadmodule "/usr/lib/ser/modules/rr.so" loadmodule "/usr/lib/ser/modules/maxfwd.so" loadmodule "/usr/lib/ser/modules/usrloc.so" loadmodule "/usr/lib/ser/modules/registrar.so" loadmodule "/usr/lib/ser/modules/textops.so" loadmodule "/usr/lib/ser/modules/auth.so" loadmodule "/usr/lib/ser/modules/auth_radius.so" loadmodule "/usr/lib/ser/modules/acc_radius.so" # ----------------- setting module-specific parameters --------------- # -- usrloc params -- modparam("usrloc", "db_mode", 0) # -- RADIUS params -- modparam("auth_radius", "radius_config", "/etc/radiusclient-ng/radiusclient.conf") modparam("acc", "radius_config", "/etc/radiusclient-ng/radiusclient.conf") # -- rr params -- # add value to ;lr param to make some broken UAs happy modparam("rr", "enable_full_lr", 1) # # Your help is very much appreciated! Kind regards, --Gernot