More tracepot crashes

app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsController.kt

@@ -208,7 +208,7 @@ class RecentsController(bundle: Bundle? = null) : BaseController(bundle),
     }
 
     fun setRefreshing(refresh: Boolean) {
-        swipe_refresh.isRefreshing = refresh
+        swipe_refresh?.isRefreshing = refresh
     }
 
     override fun onItemMove(fromPosition: Int, toPosition: Int) { }

app/src/main/java/eu/kanade/tachiyomi/ui/source/SourceController.kt

@@ -131,7 +131,7 @@ class SourceController : NucleusController<SourcePresenter>(),
         ext_bottom_sheet.sheetBehavior?.addBottomSheetCallback(object : BottomSheetBehavior
         .BottomSheetCallback() {
             override fun onSlide(bottomSheet: View, progress: Float) {
-                shadow2.alpha = (1 - max(0f, progress)) * 0.25f
+                shadow2?.alpha = (1 - max(0f, progress)) * 0.25f
                 activity?.appbar?.elevation = max(progress * 15f,
                     if (recycler.canScrollVertically(-1)) 15f else 0f)