diff --git a/scrapy/extensions/periodic_log.py b/scrapy/extensions/periodic_log.py
index 3e496096c..0f01c441c 100644
--- a/scrapy/extensions/periodic_log.py
+++ b/scrapy/extensions/periodic_log.py
@@ -45,6 +45,12 @@ class PeriodicLog:
                 if crawler.settings.getbool("PERIODIC_LOG_STATS")
                 else None
             )
+        except TypeError:
+            ext_stats = (
+                {"enabled": True}
+                if crawler.settings.getbool("PERIODIC_LOG_STATS")
+                else None
+            )
 
         try:
             ext_delta = crawler.settings.getdict("PERIODIC_LOG_DELTA")
@@ -54,6 +60,13 @@ class PeriodicLog:
                 if crawler.settings.getdict("PERIODIC_LOG_DELTA")
                 else None
             )
+        except TypeError:
+            ext_stats = (
+                {"enabled": True}
+                if crawler.settings.getbool("PERIODIC_LOG_DELTA")
+                else None
+            )
+
         ext_timing_enabled = crawler.settings.getbool(
             "PERIODIC_LOG_TIMING_ENABLED", False
         )