diff --git a/plugins/arcgis/service/src/FeatureQuerier.ts b/plugins/arcgis/service/src/FeatureQuerier.ts
index 395f085d0..d00a35da1 100644
--- a/plugins/arcgis/service/src/FeatureQuerier.ts
+++ b/plugins/arcgis/service/src/FeatureQuerier.ts
@@ -67,9 +67,8 @@ export class FeatureQuerier {
             params: { f: 'json' }
         });
 
-        this._console.info('ArcGIS response for ' + queryUrl + ' ' + queryResponse.toString)
-        const result = queryResponse as QueryObjectResult
-        response(result);
+        this._console.info('ArcGIS response for ' + queryUrl + ' ' + JSON.stringify(queryResponse, null, 2))
+        response(queryResponse as QueryObjectResult)
     }
 
     /**
@@ -91,9 +90,8 @@ export class FeatureQuerier {
             params: { f: 'json' }
         });
 
-        this._console.info('ArcGIS response for ' + queryUrl + ' ' + queryResponse)
-            const result = queryResponse as QueryObjectResult
-            response(result)
+        this._console.info('ArcGIS response for ' + queryUrl + ' ' + JSON.stringify(queryResponse, null, 2))
+        response(queryResponse as QueryObjectResult)
     }
 
     /**
@@ -108,13 +106,19 @@ export class FeatureQuerier {
         queryUrl.searchParams.set('outFields', this.outFields([field]));
         queryUrl.searchParams.set('returnGeometry', 'false');      
         this._console.info('ArcGIS query: ' + queryUrl)
-        
-        const queryResponse = await request(queryUrl.toString(), {
-            authentication: this._identityManager
-        });  
-        this._console.info('ArcGIS response for ' + queryUrl + ' ' + queryResponse)
-        const result = queryResponse as QueryObjectResult
-        response(result)
+
+        try {
+            const queryResponse = await request(queryUrl.toString(), {
+                authentication: this._identityManager,
+                params: { f: 'json' }
+
+            });  
+
+            this._console.info('ArcGIS response for ' + queryUrl + ' ' + JSON.stringify(queryResponse, null, 2))
+            response(queryResponse as QueryObjectResult)
+        } catch (err) {
+            console.error("could not query", err)
+        }
     }
 
     /**
diff --git a/plugins/arcgis/service/src/ObservationsSender.ts b/plugins/arcgis/service/src/ObservationsSender.ts
index f57cdc2ee..7e33de95d 100644
--- a/plugins/arcgis/service/src/ObservationsSender.ts
+++ b/plugins/arcgis/service/src/ObservationsSender.ts
@@ -270,20 +270,22 @@ export class ObservationsSender {
      * @param objectId The arc object id of the observation.
      */
     private async sendAttachment(attachment: ArcAttachment, objectId: number) {
-        const file = path.join(this._attachmentDirectory, attachment.contentLocator!)
-
-        const fileName = this.attachmentFileName(attachment)
-        this._console.info('ArcGIS ' + request + ' file ' + fileName + ' from ' + file)
-
-        const readStream = await fs.openAsBlob(file)
-        const test = new File([readStream], fileName)
-
-        addAttachment({
-            url: this._url,
-            authentication: this._identityManager,
-            featureId: objectId,
-            attachment: test
-        }).catch((error) => this._console.error(error));
+        if (attachment.contentLocator) {
+            const file = path.join(this._attachmentDirectory, attachment.contentLocator!)
+
+            const fileName = this.attachmentFileName(attachment)
+            this._console.info('ArcGIS ' + request + ' file ' + fileName + ' from ' + file)
+    
+            const readStream = await fs.openAsBlob(file)
+            const attachmentFile = new File([readStream], fileName)
+    
+            addAttachment({
+                url: this._url,
+                authentication: this._identityManager,
+                featureId: objectId,
+                attachment: attachmentFile
+            }).catch((error) => this._console.error(error));
+        }
     }
 
     /**
@@ -293,21 +295,23 @@ export class ObservationsSender {
      * @param attachmentId The observation arc attachment id.
      */
     private async updateAttachment(attachment: ArcAttachment, objectId: number, attachmentId: number) {
-        const file = path.join(this._attachmentDirectory, attachment.contentLocator!)
-
-        const fileName = this.attachmentFileName(attachment)
-        this._console.info('ArcGIS ' + request + ' file ' + fileName + ' from ' + file)
-
-        const readStream = await fs.openAsBlob(file)
-        const test = new File([readStream], fileName)
-
-        updateAttachment({
-            url: this._url,
-            authentication: this._identityManager,
-            featureId: objectId,
-            attachmentId,
-            attachment: test
-        }).catch((error) => this._console.error(error));
+        if (attachment.contentLocator) {
+            const file = path.join(this._attachmentDirectory, attachment.contentLocator!)
+
+            const fileName = this.attachmentFileName(attachment)
+            this._console.info('ArcGIS ' + request + ' file ' + fileName + ' from ' + file)
+    
+            const readStream = await fs.openAsBlob(file)
+            const attachmentFile = new File([readStream], fileName)
+    
+            updateAttachment({
+                url: this._url,
+                authentication: this._identityManager,
+                featureId: objectId,
+                attachmentId,
+                attachment: attachmentFile
+            }).catch((error) => this._console.error(error));
+        }
     }
 
     /**