Could not create JCOClientConnection for logical System:

Hi,

I am facing a wierd problem in using the JCO destinations.

I created a page where it is using some JCO destinations say SAP_R3_HumanResources.

when i open the page it is working for the first time .without closing the page if i open the same page again it is giving the following error

Error connecting using JCO.Client: null

Error connecting using JCO.Client: null

Pernr:Could not create JCOClientConnection for logical System: SAP_R3_HumanResources - Model: class com.swissre.CustomData. Please assure that you have configured the RFC connections and/or logical system name properly for this model!

Please let me know how to solve this issue

Thanks

Bala Duvvuri