diff --git a/src/lsst/cmservice/common/butler.py b/src/lsst/cmservice/common/butler.py
index 953f656f..73ed24fb 100644
--- a/src/lsst/cmservice/common/butler.py
+++ b/src/lsst/cmservice/common/butler.py
@@ -1,7 +1,7 @@
 """Utility functions for working with butler commands"""
 
 from lsst.cmservice.common import errors
-from lsst.daf.butler import Butler
+from lsst.daf.butler import Butler, MissingCollectionError
 
 
 def remove_run_collections(
@@ -31,6 +31,8 @@ def remove_run_collections(
         raise errors.CMNoButlerError(e) from e  # pragma: no cover
     try:  # pragma: no cover
         butler.registry.removeCollection(collection_name)
+    except MissingCollectionError:
+        pass
     except Exception as msg:
         raise errors.CMButlerCallError(msg) from msg
 
diff --git a/src/lsst/cmservice/handlers/script_handler.py b/src/lsst/cmservice/handlers/script_handler.py
index 8fe9ec95..55a23878 100644
--- a/src/lsst/cmservice/handlers/script_handler.py
+++ b/src/lsst/cmservice/handlers/script_handler.py
@@ -593,7 +593,7 @@ async def _reset_script(
         if script.stamp_url and os.path.exists(script.stamp_url):
             os.unlink(script.stamp_url)
         if to_status.value <= StatusEnum.ready.value:
-            if script.script_url:
+            if script.script_url and os.path.exists(script.script_url):
                 os.unlink(script.script_url)
             update_fields["script_url"] = None
             update_fields["log_url"] = None