Catch non-critical exceptions at crawler top level

CHANGELOG.md

@@ -34,6 +34,7 @@ ambiguous situations.
 
 ### Fixed
 - Nondeterministic name deduplication due to ILIAS reordering elements
+- More exceptions are handled properly
 
 ## 3.1.0 - 2021-06-13
 

PFERD/crawl/crawler.py

@@ -320,6 +320,7 @@ class Crawler(ABC):
             log.explain("Warnings or errors occurred during this run")
             log.explain("Answer: No")
 
+    @anoncritical
     async def run(self) -> None:
         """
         Start the crawling process. Call this function if you want to use a