--- a/plugins/mod_smacks.lua	Fri Dec 31 00:48:38 2021 +0100
+++ b/plugins/mod_smacks.lua	Fri Dec 31 00:59:10 2021 +0100
@@ -297,6 +297,8 @@
 				keep[token] = info;
 			end
 			all_old_sessions:set(session.username, keep);
+		elseif err then
+			module:log("error", "Unable to retrieve old resumption counters: %s", err);
 		end
 	end