reactjs - Cannot navigate out of route with a parameter with React Router in Meteor -

i having trouble when using navigation bar move away route not accessible it.

here navbar:

when use clicks on search presented table of charities listed in country. route search page is:

<route path="search" component={searchcontainer} />

from table click on particular charity taken it's page. route is:

<route path="charity/:registeredcharitynumber" component={charitypagecontainer} />

the problem once viewing charity, clicking on item in navigation navigation bar results in error in web console:

the nav bar works before after visit charity page route see error. way fix browser reload. clicking on error in browser debug view highlights (4th line) section of code:

this router looks like:

export const renderroutes = () => (   <router history={browserhistory}>     <route path="/" component={app}>       <indexroute component={homepagecontainer} />       <route path="about" component={aboutpage} />       <route path="search" component={searchcontainer} />       <route path="contact" component={contactpage} />       <route path="thankyou" component={thankyou} />       <route path="charity/:registeredcharitynumber" component={charitypagecontainer} />     </route>   </router> ); 

here charitypagecontainer:

export default createcontainer(( { params: { registeredcharitynumber }} ) => {    const charnum = parseint(registeredcharitynumber);   const subscriptionhandle = meteor.subscribe('current.charity', charnum);   console.log('charity object ',currentcharity(charnum).fetch()[0]);   const loading = !subscriptionhandle.ready();   return {     subscriptionhandle,     loading,     charity: currentcharity(charnum).fetch()[0]   }; }, charitypage); 

and important section of navbar component:

<link activeclassname="active" classname="item" to="/">home</link> <link activeclassname="active" classname="item" to="/about">about</link> <link activeclassname="active" classname="item" to="/search">search</link> <link activeclassname="active" classname="item" to="/contact">contact</link> 

using "react": "^15.2.1", "react-router": "^2.6.0",