diff --git a/src/caosadvancedtools/crawler.py b/src/caosadvancedtools/crawler.py
index b7c7c749f80e133e9ce37552d7c17e776d0481d4..60be5d59a3f42f7021ae83fadfb8ee0aa52fa0a5 100644
--- a/src/caosadvancedtools/crawler.py
+++ b/src/caosadvancedtools/crawler.py
@@ -195,8 +195,9 @@ class Crawler(object):
                         logger.debug("{} matched\n{}.".format(
                                 Cfood.__name__,
                                 item))
-                    except DataInconsistencyError:
-                        pass
+                    except DataInconsistencyError as e:
+                        logger.debug(traceback.format_exc())
+                        logger.debug(e)
                     except Exception as e:
                         logger.debug("Failed during execution of {}!".format(
                             Cfood.__name__))
@@ -279,8 +280,9 @@ class Crawler(object):
 
                 cfood.update_identifiables()
                 self.push_identifiables_to_CaosDB(cfood)
-            except DataInconsistencyError:
-                pass
+            except DataInconsistencyError as e:
+                logger.debug(traceback.format_exc())
+                logger.debug(e)
             except Exception as e:
                 logger.info("Failed during execution of {}!".format(
                     cfood.__class__.__name__))
diff --git a/src/caosadvancedtools/table_importer.py b/src/caosadvancedtools/table_importer.py
index 5268332c352c030d2c4d68903d0ab532217073fd..03b4ffbc1549e008684e58158a8a57bd055237ad 100755
--- a/src/caosadvancedtools/table_importer.py
+++ b/src/caosadvancedtools/table_importer.py
@@ -87,7 +87,11 @@ def win_path_list_converter(val):
     checks whether the value looks like a list of windows paths and converts
     it to posix paths
     """
+
+    if pd.isnull(val):
+        return []
     paths = val.split(",")
+
     return [win_path_converter(p) for p in paths]