Added check for apache config section

OTcerts.py

@@ -1,4 +1,5 @@
 
+
 import os
 import sys
 import errno
@@ -276,7 +277,6 @@ if __name__ == '__main__':
 
         if acme_renew(config, pre_hook_cmd, post_hook_cmd, dryrun=dryrun):
             logger.info("Done renew")
-            
     else:
         # Fai le nuove richieste per i certificati
 
@@ -300,6 +300,12 @@ if __name__ == '__main__':
         # Caso speciale per l'hosting
         if args.hosting:
             logging.info('Asking certificates for hosted web domains')
+            try:
+                hosting_conf = config['apache']
+            except KeyError as e:
+                logger.error("Error parsing configuration, KeyError {}".format(e))
+                exit(-1)
+
             ot_conn=connect_db(dict(config['ot_db']))
             dns_conn=connect_db(dict(config['dns_db']))
             # Subdomains da escludere