runtime error: invalid memory address or nil pointer dereference

[ankemzi]

We are experiencing issues compiling our templates. Any help or recommendations will be extremely useful and appreciated.
the error gotten is " runtime error: invalid memory address or nil pointer dereference - Line: 41, Column: 5, Length: 3
STACK:"

The script being compiled contains the following code, I cant seem to solve the issue.

**`extends ./../layout

block menu
+topMenu("items")

block left_menu
+leftMenu("items")

block content
$selectedPage = Page
$selectedCity = CityID
$selectedCategory = CategoryID
$selectedShippingTo = ShippingTo
$selectedShippingFrom = ShippingFrom
$viewUser = ViewUser
$sortby = SortBy
$account = Account
$l = Localization
div.ui.grid.stackable.divided
div.three.wide.column.t-left-menu-items
if EnableStoreStaffUI
if ViewUserStore.VerificationRequired
a.ui.button.red.fluid[href="/verification/encryption"] #{Localization.Auth.VerifyAccount}
div.ui.section.divider.left-menu
if !HideAdvertisings
import ./../advertising/partial_advertising
import C:\Users\user\go\src\marketplaceproject-clone\student-free-market\deploy\package\templates\mixin_right_menu.amber
$SelectedPackageType = SelectedPackageType
$Localization = Localization
$ShippingFrom = ShippingFrom
$ShippingFromList = ShippingFromList
$ShippingTo = ShippingTo
$ShippingToList = ShippingToList
$City = City
$GeoCities = GeoCities
$SortBy = SortBy
$Category = Category
$SubCategory = SubCategory
$Query = Query
+RightMenu($SelectedPackageType, $Localization, $ShippingFrom, $ShippingFromList, $ShippingTo, $ShippingToList, $SelectedPackageType, $City, $GeoCities, $SortBy, $Category, $SubCategory, $Query)
div.thirteen.wide.column
form.ui.input.icon.fluid[method="GET"][action="/marketplace"]
input[type="hidden"][name="category"][value=0]
input[type="hidden"][name="subcategory"][value=0]
input[type="text"][name="query"][placeholder=Localization.Items.LookingFor][value=Query]
i.icon.search
div.ui.four.item.menu.secondary.pointing
a.item[href="/marketplace/"]
[class="active"] ? SelectedPackageType == "all"
i.icon.filter
| #{Localization.Items.AllTypes}
a.item[href="/marketplace/mail/"]
[class="active"] ? SelectedPackageType == "mail"
i.icon.envelope.open.outline
| #{Localization.Items.Mail}
a.item[href="/marketplace/drop/"]
[class="active"] ? SelectedPackageType == "drop"
i.icon.sticky.note.outline
| #{Localization.Items.Drop}
a.item[href="/marketplace/drop preorder/"]
[class="active"] ? SelectedPackageType == "drop preorder"
i.icon.warehouse
| #{Localization.Items.DropPreorder}
if len(ViewSerpItems) > 0
div.ui.grid.stackable
each $item in ViewSerpItems
div.four.wide.column
import ./mixin_item_row
$i = $item
$u = $viewUser
+itemRow($i, $u, $l)
if len(ViewSerpItems) == 0
div.ui.icon.message
i.icon.cart
div.content
div.header #{Localization.Items.NoItems}
if len(Pages) > 1
$query = Query
div.ui.section.divider
div.ui.pagination.menu.mini
each $page in Pages
div.item
.active ? $page == $selectedPage
a[href="?page="+$page + "&city="+$selectedCity + "&category="+$selectedCategory + "&sortby="+$sortby + "&account="+$account + "&shipping-to="+$selectedShippingTo + "&shipping-from="+$selectedShippingFrom + "&query=" + $query] #{$page}
`**