/usr/lib/lua/luci/dispatcher.lua:784: bad argument #1 to ‘pairs’ (table expected, got nil)stack traceback:
C]:in function pairs"/usr/lib/lua/luci/dispatcher.lua:784:in functionresolve firstchild’/usr/lib/lua/luci/dispatcher.lua:864:in function ‘resolve_page’/usr/lib/lua/luci/dispatcher.lua:888: in function ‘dispatch’/usr/lib/lua/luci/dispatcher,lua:482: in function </usr/lib/lua/luci/dispatcher.lua:481>
刚才把软路由系统文件一个文件夹删掉了，然后就这样了
遇到上面错误，如何修复系统？