in src/libs/zbxdbcache/dbconfig.c in function DCsync_items():

/* db items */
i = get_nearestindex(config->dbitems, sizeof(ZBX_DC_LOGITEM),
config->dbitems_num, itemid);

sizeof(ZBX_DC_LOGITEM) is incorrect and must be replaced with sizeof(ZBX_DC_DBITEM)