.nodata() problem in trigger

[pantera]

Hi
I receive trap on zabbix
I created 2 trigger to fire up when desired string recived and change trigger status to OK after 30 sec

1st trigger:
({TRIGGER.VALUE}=0 and {Trap Receive:snmptrap["Sign-In Attempt By Invalid User"].str("Sign-In Attempt By Invalid User")}=0) or ({TRIGGER.VALUE}=1 and {Trap Receive:snmptrap["Sign-In Attempt By Invalid User"].str("Sign-In Attempt By Invalid User")}=1)

2nd trigger
({TRIGGER.VALUE}=0 and {Trap Receive:snmptrap["Sign-In Attempt By Invalid User"].str("Sign-In Attempt By Invalid User")}=0) or ({TRIGGER.VALUE}=1 and {Trap Receive:snmptrap["Sign-In Attempt By Invalid User"].nodata(30)}=1)

But I'm not successful.
Help please