Use of uninitalized value $val in substitution (s///) at ./check_webinject line 1582

[Christian Richter]

Hi there,

I'm using the Webinject Plugin within an Icinga (Nagios) Monitoring System to Check the login an composition of an email for an webmail site. While the login part works, the composing part does not and gives the following error:

"Use of uninitalized value $val in substitution (s///) at ./check_webinject line 1582"

followed by not finding any of the values given for parsedresult (which definitely are there, I checked the site's source code).

I found a similar error for version 1.41, but I'm using the actual version ( 1.86 ). What am I doing wrong? Any tips on debugging this? Thanks in advance!