added exception handling logic

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 38e2a18..216b837 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -14,7 +14,7 @@
   rescue:
     - name: Cassandra needs a another minute, then retry
       pause:
-        minute: 1
+        minutes: 1
 
     - name: Try again to streaming repair Cassandra nodes
       shell: '{{ nodetool }} repair -pr'