Octopus Plugin problem after teamcity upgarde to 8.0.2

I have recently upgraded teamcity to version 8.0.2. Since then octopus deployments are failing. Contacted the teamcity team and they said it could be some mistake in JSP file. Most likely previous version of tomcat didn’t detect it. please see issue on teamcity for ref:- http://youtrack.jetbrains.com/issue/TW-31190#

I am getting the following error while deploying:-
Unexpected Error

This was not supposed to happen. Please provide the error details to your TeamCity server maintainer.
If you maintain this TeamCity installation please report this error to JetBrains.

Error message: javax.servlet.jsp.JspException: javax.el.ELException: Problems calling function ‘fn:length’

TeamCity: 8.0.2 (build 27482)

Operating system: Windows Server 2008 R2 (6.1, x86)

Java: 1.7.0_21-b11 (Oracle Corporation)

Servlet container: Apache Tomcat/7.0.37

Attached is the stacktrace file. please guide as our whole deployment has come to a halt.

stackrace.txt (63 KB)