Error after updating from Ejab 15.07 to Ejab 15.09

Below is the error i am getting after i have updated to Ejab 15.09 for mod_mam module though it is working fine for me too.

[error] <0.397.0>@gen_iq_handler:process_iq:120 {badarg,[{erlang,binary_to_atom,[null,utf8],[]},{jlib,binary_to_atom,1,[{file,"src/jlib.erl"},{line,934}]},{mod_mam,'-select/8-fun-2-',3,[{file,"src/mod_mam.erl"},{line,674}]},{lists,map,2,[{file,"lists.erl"},{line,1237}]},{mod_mam,select,8,[{file,"src/mod_mam.erl"},{line,668}]},{mod_mam,select_and_send,10,[{file,"src/mod_mam.erl"},{line,568}]},{gen_iq_handler,process_iq,6,[{file,"src/gen_iq_handler.erl"},{line,119}]},{gen_iq_handler,handle_info,2,[{file,"src/gen_iq_handler.erl"},{line,191}]}]}

[error] <0.4353.0>@ejabberd_hooks:run_fold1:371 {function_clause,[{mod_roster,raw_to_record,[<<"ejab.ngageapp.com">>,error],[{file,"src/mod_roster.erl"},{line,1291}]},{mod_roster,fill_subscription_lists,4,[{file,"src/mod_roster.erl"},{line,688}]},{ejabberd_hooks,safe_apply,3,[{file,"src/ejabberd_hooks.erl"},{line,385}]},{ejabberd_hooks,run_fold1,4,[{file,"src/ejabberd_hooks.erl"},{line,368}]},{ejabberd_c2s,wait_for_session,2,[{file,"src/ejabberd_c2s.erl"},{line,1132}]},{p1_fsm,handle_msg,10,[{file,"src/p1_fsm.erl"},{line,582}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,237}]}]}
running hook: {roster_get_subscription_lists,[<<"919833334099">>,<<"ejab.ngageapp.com">>]}

And i am sharing my crash log too :

heap_size: 10958
stack_size: 27
reductions: 3720562
neighbours:
2015-11-02 10:32:04 =SUPERVISOR REPORT====
Supervisor: {local,ejabberd_c2s_sup}
Context: child_terminated
Reason: {function_clause,[{jlib,jid_to_string,[error],[{file,"src/jlib.erl"},{line,260}]},{ejabberd_c2s,'-handle_unacked_stanzas/1-fun-6-',5,[{file,"src/ejabberd_c2s.erl"},{line,2925}]},{lists,foreach,2,[{file,"lists.erl"},{line,1336}]},{ejabberd_c2s,terminate,3,[{file,"src/ejabberd_c2s.erl"},{line,1871}]},{p1_fsm,terminate,8,[{file,"src/p1_fsm.erl"},{line,740}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,237}]}]}
Offender: [{pid,<0.23211.26>},{name,undefined},{mfargs,{ejabberd_c2s,start_link,undefined}},{restart_type,temporary},{shutdown,1000},{child_type,worker}]