diff --git a/app/assets/v2/js/grants/ingest-missing-contributions.js b/app/assets/v2/js/grants/ingest-missing-contributions.js
index 4b013d9055d..76e0c02a818 100644
--- a/app/assets/v2/js/grants/ingest-missing-contributions.js
+++ b/app/assets/v2/js/grants/ingest-missing-contributions.js
@@ -191,7 +191,11 @@ Vue.component('grants-ingest-contributions', {
         if (!json.success) {
           console.log('ingestion failed');
           this.submitted = false;
-          throw new Error('Your transactions could not be processed, please try again');
+          const msg = json.message ?
+            'Error adding contributions as ' + json.message :
+            'Error adding contributions, please try again';
+
+          throw new Error(msg);
         } else {
           console.log('ingestion successful');
           _alert('Your contributions have been added successfully!', 'success');
diff --git a/app/grants/admin.py b/app/grants/admin.py
index 2a8aae97681..6735ac091a6 100644
--- a/app/grants/admin.py
+++ b/app/grants/admin.py
@@ -348,7 +348,9 @@ def txn_url(self, obj):
         return format_html("<a href='{}' target='_blank'>{}</a>", tx_url, tx_id)
 
     def profile(self, obj):
-        return format_html(f"<a href='/{obj.subscription.contributor_profile.handle}'>{obj.subscription.contributor_profile}</a>")
+        if obj.subscription.contributor_profile:
+            return format_html(f"<a href='/{obj.subscription.contributor_profile.handle}'>{obj.subscription.contributor_profile}</a>")
+        return None
 
     def created_on_nt(self, obj):
         return naturaltime(obj.created_on)
@@ -360,7 +362,9 @@ def token(self, obj):
         return obj.subscription.token_symbol
 
     def user_sybil_score(self, obj):
-        return f"{obj.subscription.contributor_profile.sybil_score} ({obj.subscription.contributor_profile.sybil_score_str})"
+        if obj.subscription.contributor_profile:
+            return f"{obj.subscription.contributor_profile.sybil_score} ({obj.subscription.contributor_profile.sybil_score_str})"
+        return '0'
 
     def grant(self, obj):
         return mark_safe(f"<a href={obj.subscription.grant.url}>{obj.subscription.grant.title}</a>")
diff --git a/app/grants/clr.py b/app/grants/clr.py
index 20a7411c176..e8d682eee0f 100644
--- a/app/grants/clr.py
+++ b/app/grants/clr.py
@@ -145,7 +145,7 @@ def calculate_clr(aggregated_contributions, pair_totals, trust_dict, v_threshold
                 {user_id (str): {user_id (str): pair_total (float)}}
             trust_dict
                 {user_id (str): trust_score (float)}
-            v_threshold 
+            v_threshold
                 float
             uv_threshold
                 float
@@ -360,11 +360,12 @@ def populate_data_for_clr(grants, contributions, clr_round):
         contributions_by_id = {}
         for c in contribs:
             prof = c.profile_for_clr
-            key = prof.id
-            if key not in contributions_by_id.keys():
-                contributions_by_id[key] = []
-            contributions_by_id[key].append(c)
-            contributing_profile_ids.append((prof.id, prof.trust_bonus))
+            if prof:
+                key = prof.id
+                if key not in contributions_by_id.keys():
+                    contributions_by_id[key] = []
+                contributions_by_id[key].append(c)
+                contributing_profile_ids.append((prof.id, prof.trust_bonus))
 
         contributing_profile_ids = list(set(contributing_profile_ids))
 
diff --git a/app/grants/views.py b/app/grants/views.py
index be2a32ca137..1779727fdd0 100644
--- a/app/grants/views.py
+++ b/app/grants/views.py
@@ -3267,6 +3267,12 @@ def ingest_contributions(request):
     message = request.POST.get('message')
     network = request.POST.get('network')
     ingestion_types = [] # after each series of ingestion, we append the ingestion_method to this array
+    handle = request.POST.get('handle')
+
+    if (profile.is_staff and
+        ( not handle or Profile.objects.filter(handle=handle).count() == 0)
+    ):
+            return JsonResponse({ 'success': False, 'message': 'Profile could not be found' })
 
     # Setup web3
     w3 = get_web3(network)
@@ -3291,12 +3297,15 @@ def verify_signature(signature, message, expected_address):
         if recovered_address.lower() != expected_address.lower():
             raise Exception("Signature could not be verified")
 
-    if txHash != '':
-        receipt = w3.eth.getTransactionReceipt(txHash)
-        from_address = receipt['from']
-        verify_signature(signature, message, from_address)
-    if userAddress != '':
-        verify_signature(signature, message, userAddress)
+    try:
+        if txHash != '':
+            receipt = w3.eth.getTransactionReceipt(txHash)
+            from_address = receipt['from']
+            verify_signature(signature, message, from_address)
+        if userAddress != '':
+            verify_signature(signature, message, userAddress)
+    except:
+        return JsonResponse({ 'success': False, 'message': 'Signature could not be verified' })
 
     def get_token(w3, network, address):
         if (address == '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE'):