fix: handle exceptions in xmr data logging

Added a try-except block when printing XMR-related data to handle potential exceptions such as missing social data or uninitialized variables. This prevents the application from crashing due to `Social.DoesNotExist` or `UnboundLocalError`, enhancing robustness and ensuring smoother operation.

app/charts/synchronous.py

@@ -795,6 +795,8 @@ def update_database(date_from=None, date_to=None):
             data.crypto_postsPerHour = 0
 
         data.save()
+
+        try:
             print(
                 str(coin_xmr.supply)
                 + " xmr "
@@ -806,6 +808,8 @@ def update_database(date_from=None, date_to=None):
                 + " => "
                 + str(coin_xmr.inflation)
             )
+        except (Social.DoesNotExist, UnboundLocalError):
+            pass
 
         count += 1