0.7.5 to 0.9.8 Failed

I change -name ejabberd@hapi.pl to -name ejabberd@brama in ejabberctl script and ejabberd run, but without rosters (users cant see rosters and in webpanel is impossible to open roster window). Message sending is working ok.

I have other error:
/opt/eerd-0.9.8/bin/ejabberdctl ctl
-bash: /opt/eerd-0.9.8/bin/ejabberdctl: No such file or directory
-bash-3.00# /opt/ejabberd-0.9.8/bin/ejabberdctl ejabberd@brama status
{error_logger,{{2005,10,22},{9,57,40}},'Protocol: ~p: register error: ~p~n',[inet_tcp,{{badmatch,{error,duplicate_name}},[{inet_tcp_dist,listen,1},{net_kernel,start_protos,4},{net_kernel,start_protos,3},{net_kernel,init_node,2},{net_kernel,init,1},{gen_server,init_it,6},{proc_lib,init_p,5}]}]}
{error_logger,{{2005,10,22},{9,57,40}},crash_report,[[{pid,<0.19.0>},{registered_name,net_kernel},{error_info,{error,badarg}},{initial_call,{gen,init_it,[gen_server,<0.16.0>,<0.16.0>,{local,net_kernel},net_kernel,{'ejabberd@brama',longnames,15000},[]]}},{ancestors,[net_sup,kernel_sup,<0.8.0>]},{messages,[]},{links,[#Port<0.6>,<0.16.0>]},{dictionary,[{longnames,true}]},{trap_exit,true},{status,running},{heap_size,610},{stack_size,21},{reductions,398}],[]]}
{error_logger,{{2005,10,22},{9,57,40}},supervisor_report,[{supervisor,{local,net_sup}},{errorContext,start_error},{reason,{'EXIT',nodistribution}},{offender,[{pid,undefined},{name,net_kernel},{mfa,{net_kernel,start_link,[['ejabberd@brama',longnames]]}},{restart_type,permanent},{shutdown,2000},{child_type,worker}]}]}
{error_logger,{{2005,10,22},{9,57,40}},supervisor_report,[{supervisor,{local,kernel_sup}},{errorContext,start_error},{reason,shutdown},{offender,[{pid,undefined},{name,net_sup},{mfa,{erl_distribution,start_link,[]}},{restart_type,permanent},{shutdown,infinity},{child_type,supervisor}]}]}
{error_logger,{{2005,10,22},{9,57,41}},crash_report,[[{pid,<0.7.0>},{registered_name,[]},{error_info,{shutdown,{kernel,start,[normal,[]]}}},{initial_call,{application_master,init,[<0.5.0>,<0.6.0>,{appl_data,kernel,[application_controller,erl_reply,auth,boot_server,code_server,disk_log_server,disk_log_sup,erl_prim_loader,error_logger,file_server,file_server_2,fixtable_server,global_group,global_name_server,heart,init,kernel_config,kernel_sup,net_kernel,net_sup,rex,user,os_server,ddll_server,erl_epmd,inet_db,pg2],undefined,{kernel,[]},[application,application_controller,application_master,application_starter,auth,code,code_aux,packages,code_server,dist_util,erl_boot_server,erl_distribution,erl_prim_loader,erl_reply,erlang,error_handler,error_logger,file,file_server,old_file_server,file_io_server,prim_file,global,global_group,global_search,group,heart,inet6_tcp,inet6_tcp_dist,inet6_udp,inet_config,inet_hosts,inet_gethost_native,inet_tcp_dist,init,kernel,kernel_config,net,net_adm,net_kernel,os,ram_file,rpc,user,user_drv,user_sup,disk_log,disk_log_1,disk_log_server,disk_log_sup,dist_ac,erl_ddll,erl_epmd,erts_debug,gen_tcp,gen_udp,prim_inet,inet,inet_db,inet_dns,inet_parse,inet_res,inet_tcp,inet_udp,pg2,seq_trace,wrap_log_reader,zlib,otp_ring0],[],infinity,infinity},normal]}},{ancestors,[<0.6.0>]},{messages,[{'EXIT',<0.8.0>,normal}]},{links,[<0.6.0>,<0.5.0>]},{dictionary,[]},{trap_exit,true},{status,running},{heap_size,987},{stack_size,21},{reductions,1062}],[]]}
{error_logger,{{2005,10,22},{9,57,41}},std_info,[{application,kernel},{exited,{shutdown,{kernel,start,[normal,[]]}}},{type,permanent}]}
{"Kernel pid terminated",application_controller,shutdown}

Crash dump was written to: erl_crash.dump
Kernel pid terminated (application_controller) (shutdown)

Please help.