Error in WebDynpro Java

Hi Experts,

I have a SAP Netweaver Portal 7.30 with SP10, but when I access with each android browser (android browser, firefox, chrome, etc...) the message is:

com.sap.tc.useragent.UserAgentServiceException: Syntax Error in number '$4' of User-Agent Number Element ID 'engineVersion'.

Any Idea?

Thanks in advance.

Regards