When I click General Discussion page, the problem coming

[User Warning] Forum::ForumHolderURLSegment is deprecated. Please use Forum::ForumHolderLink() instead which works with nested URLs.
GET /ss/forums/general-discussion/

Line 1696 in C:\web\ss\widget_forum\code\Forum.php
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Source:
Source

1687     *
1688     * @return bool Set to TRUE if the user is allowed to, to FALSE if they're
1689     * not
1690     */
1691    function canAttach() {
1692       return $this->CanAttachFiles ? true : false;
1693    }
1694
1695    function ForumHolderURLSegment() {
1696       trigger_error('Forum::ForumHolderURLSegment is deprecated. Please use Forum::ForumHolderLink() instead which works with nested URLs.', E_USER_WARNING);
1697       return $this->ForumHolderLink();
1698    }
1699
1700    /**
1701     * Get the forum holder's URL segment
1702     */
Trace

trigger_error(Forum::ForumHolderURLSegment is deprecated. Please use Forum::ForumHolderLink() instead which works with nested URLs.,512)
Line 1696 of Forum.php
Forum_Controller->ForumHolderURLSegment()
Line 369 of ViewableData.php
ViewableData->obj(ForumHolderURLSegment,,,1,)
Line 411 of ViewableData.php
ViewableData->cachedCall(ForumHolderURLSegment,)
Line 424 of ViewableData.php
ViewableData->hasValue(ForumHolderURLSegment)
Line 133 of .cache.widget_forum.templates.Layout.Forum.ss
include(C:\WINDOWS\Temp\silverstripe-cacheC--web-ss\.cache.widget_forum.templates.Layout.Forum.ss)
Line 420 of SSViewer.php
SSViewer->process(Forum_Controller,Zend_Cache_Frontend_Output)
Line 411 of SSViewer.php
SSViewer->process(Forum_Controller)
Line 202 of Controller.php
Controller->handleAction(SS_HTTPRequest)
Line 143 of RequestHandler.php
RequestHandler->handleRequest(SS_HTTPRequest)
Line 147 of Controller.php
Controller->handleRequest(SS_HTTPRequest)
Line 199 of ContentController.php
ContentController->handleRequest(SS_HTTPRequest)
Line 184 of ContentController.php
ContentController->handleRequest(SS_HTTPRequest)
Line 67 of ModelAsController.php
ModelAsController->handleRequest(SS_HTTPRequest)
Line 282 of Director.php
Director::handleRequest(SS_HTTPRequest,Session)
Line 125 of Director.php
Director::direct(/forums/general-discussion/)
Line 127 of main.php
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I want to use $link insteads of $ForumHolderURLSegment, but I cannot find $ForumHolderURLSegment in C:\Windows\Temp\silverstripe-cacheC--wamp-www-*******\.cache.forum.templates.Layout.Forum.ss

Thanks Willr, here is content in my /widget_forum/templates/Layout/Forum.ss

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<div id="Forum">
   <% include ForumHeader %>

   $Content
   <% if ForumAdminMsg %>
      <p id="ForumAdminMsg">$ForumAdminMsg</p>
   <% end_if %>
   
   <% if ForumPosters = NoOne %>
      <p class="message error"><% _t('READONLYFORUM', 'This Forum is read only. You cannot post replies or start new threads') %></p>
   <% end_if %>
   <% if CheckForumPermissions(starttopic) %>
      <p><a href="{$Link}starttopic" title="<% _t('NEWTOPIC','Click here to start a new topic') %>"><img src="forum/images/forum_startTopic.gif" alt="<% _t('NEWTOPICIMAGE','Start new topic') %>" /></a></p>
   <% end_if %>
   <div class="forumHolderFeatures">
      <% if StickyTopics %>
         <table id="StickyTopiclist" class="topicList" summary="List of sticky topics in this forum">
            <tr class="category"><td colspan="3"><% _t('ANNOUNCEMENTS', 'Announcements') %></td></tr>
            <% control StickyTopics %>
               <% include TopicListing %>
            <% end_control %>
         </table>
      <% end_if %>
      <table id="TopicList" class="topicList" summary="List of topics in this forum">
         <tr class="category"><td colspan="4"><% _t('THREADS', 'Threads') %></td></tr>
         <tr>
            <th class="odd"><% _t('TOPIC','Topic') %></th>
            <th class="odd"><% _t('POSTS','Posts') %></th>
            <th class="even"><% _t('LASTPOST','Last Post') %></th>
         </tr>
         <% if Topics %>
            <% control Topics %>
               <% include TopicListing %>
            <% end_control %>
         <% else %>
            <tr>
               <td colspan="3" class="forumCategory"><% _t('NOTOPICS','There are no topics in this forum, ') %><a href="{$Link}starttopic" title="<% _t('NEWTOPIC') %>"><% _t('NEWTOPICTEXT','click here to start a new topic') %>.</a></td>
            </tr>
         <% end_if %>
      </table>

      <% if Topics.MoreThanOnePage %>
         <div class="typography">
            <p>
               <% if Topics.PrevLink %><a style="float: left" href="$Topics.PrevLink">   &lt; <% _t('PREVLNK','Previous Page') %></a><% end_if %>
               <% if Topics.NextLink %><a style="float: right" href="$Topics.NextLink"><% _t('NEXTLNK','Next Page') %> &gt;</a><% end_if %>
               
               <% control Topics.Pages %>
                  <% if CurrentBool %>
                     <strong>$PageNum</strong>
                  <% else %>
                     <a href="$Link">$PageNum</a>
                  <% end_if %>
               <% end_control %>
            </p>
         </div>
      <% end_if %>
      
   </div>
   <% include ForumFooter %>
</div>