Fix UPS error when a tracking event doesn't have a date or time (wtf, UPS)

lib/Tracking_UPS.lib.php

@@ -135,7 +135,6 @@ class Tracking_UPS {
 //        $from->country = (string) $trackinfo->OriginCountryCode ?? "";
 //
 //        $info->setFrom($from);
-
         // Only one entry, so put it in itself so the loop works
         if (!isset($trackinfo["Package"]["Activity"][0])) {
             $trackinfo["Package"]["Activity"] = [
@@ -148,10 +147,17 @@ class Tracking_UPS {
             $location->state = $history["ActivityLocation"]["Address"]["StateProvinceCode"] ?? "";
             $location->zip = $history["ActivityLocation"]["Address"]["PostalCode"] ?? "";
             $location->country = $history["ActivityLocation"]["Address"]["CountryCode"] ?? "";
+            if (!empty($history["Date"]) && !empty($history["Time"])) {
+                $datetimestring = DateTime::createFromFormat('Ymd His', "$history[Date] $history[Time]")->format("c");
+            } else if (!empty($history["Date"])) {
+                $datetimestring = DateTime::createFromFormat('Ymd His', "$history[Date]")->format("c");
+            } else {
+                $datetimestring = "";
+            }
             $info->appendHistoryEntry(new TrackingEntry(
                             TrackingStatus::UPSEventTypeToStatus($history["Status"]["Type"]),
                             $history["Status"]["Description"] ?? "Unknown",
-                            DateTime::createFromFormat('Ymd His', "$history[Date] $history[Time]")->format("c"),
+                            $datetimestring,
                             $location
             ));
         }