Steps to reproduce:

1. Add auto registration rule. 
2. Configure agent point Active Server to Zabbix IP
3. Start agent but new hosts is not added to server

Result:
See screenshot...

See log file...

{code}

–
7480:20180924:180651.191 In lld_graphs_save()
7480:20180924:180651.191 End of lld_graphs_save()
7480:20180924:180651.191 In lld_graphs_get()
7480:20180924:180651.191 query [txnlev:0] [select g.graphid,g.name,g.width,g.height,g.yaxismin,g.yaxisma
x,g.show_work_period,g.show_triggers,g.graphtype,g.show_legend,g.show_3d,g.percent_left,g.percent_right,g.
ymin_type,g.ymin_itemid,g.ymax_type,g.ymax_itemid from graphs g,graph_discovery gd where g.graphid=gd.grap
hid and gd.parent_graphid=2153]
7287:20180924:180651.191 Sending [net.if.out[em3]]
7663:20180924:180651.191 [Z3005] query failed: [1064] You have an error in your SQL syntax; check the ma
nual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 [select t
.triggerid,t.templateid from triggers t,functions f,items i where t.triggerid=f.triggerid and f.itemid=i.i
temid and i.hostid=10514 and]
7480:20180924:180651.191 End of lld_graphs_get()
7480:20180924:180651.191 In lld_gitems_get()
7480:20180924:180651.191 query [txnlev:0] [select gitemid,graphid,itemid,drawtype,sortorder,color,yaxiss
ide,calc_fnc,type from graphs_items where graphid=2153]
7550:20180924:180651.192 End of evaluate() value:0.007255
7550:20180924:180651.192 get_value_calculated() value:0.007255
–

{code}