[Serusers] acc.so loaded error

[Jason Zhang]

When running "ser -c", this error appeared:

0(3652) ERROR: load_module: could not open module </usr/local/lib/ser/modules/acc.so>: /usr/local/lib/ser/modules/acc.so: undefined symbol: rc_avpair_add
 0(3652) parse error (37,13-14): failed to load module
ERROR: bad config file (1 errors)

 				
What should I do for this problem?

Thanks & Best Regards,
Jason