add try catch for exception

troubleshoot_data.py

@@ -209,7 +209,11 @@ def compare_local_remote_files(ctx, file_path, url):
     # We are comparing small files so it should be ok to get the whole file
     local_data = data_object.read(ctx, file_path)
 
-    response = requests.get(url, verify=False)
+    try:
+        response = requests.get(url, verify=False)
+    except requests.exceptions.ConnectionError:
+        return False
+
     if response.status_code != 200:
         log.write_stdout(ctx, "Error {} when connecting to <{}>.".format(response.status_code, url))
         return False
@@ -262,7 +266,11 @@ def check_combi_json(ctx, data_package, publication_config):
     # TODO check if this fails
     version_doi = avu.get_val_of_coll(ctx, data_package, attr)
     url = "https://{}/oai/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:{}".format(publication_config[remote_hostname], version_doi)
-    response = requests.get(url, verify=False)
+    try:
+        response = requests.get(url, verify=False)
+    except requests.exceptions.ConnectionError:
+        return False
+
     if response.status_code != 200:
         log.write_stdout(ctx, "Error {} when connecting to <{}>.".format(response.status_code, url))
         return False